Alton, IL ZIP Codes, Map and Demographics

ZIP Code	Type	PopulationPop	% of Population% of Pop	Alias Names
61021	Standard	22,984	40.76%	Grand Detour,Nelson,Prairieville,Walton
62002	Standard	30,176	53.51%
62075	Standard	3,229	5.73%	Audubon,Coalton,Wenonah

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Population & Demographics

Alton, IL has 55,906 residents, with an average household size of 2.3. The gender split is 48.0% male and 52.0% female - about the same as the national split. By age, the top brackets are 30-34 (5.5%) and 35-39 (6.0%). By race, White and Black or African American are the largest groups. Hispanic or Latino (of any race) is 2.7%. Those born outside the United States make up 2.3% (lower than the Nation).

Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.

There are two kinds of demographics shown in the charts for Alton, IL. Each covers a different geographic boundary and has different criteria for what is included. Learn More

Total Population:	30,176
Total Households:	13,290
Total Housing Units:	26,574
Average Household Size:	2.24
Average Family Size:	3.22

All ZIP Codes assigned this City name by the USPS.

Total Population:	25,676
Total Households:	11,230
Total Housing Units:	12,995
Average Household Size:	2.24
Average Family Size:	3.73

Data for the U.S. Census Place.

Population Over Time (with 2010 & 2020 Census Benchmarks)

Line chart of All ZIPs in Alton, IL population estimates from 2011-2024, with markers for the 2010 and 2020 Decennial Census counts to show growth or decline over time. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2010	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Census ACS Population Estimate	--	59,351	59,619	58,982	58,638	58,541	58,264	57,834	57,752	57,530	56,880	56,715	55,927	55,906
Decennial Census	59,907	--	--	--	--	--	--	--	--	--	56,389	--	--	--

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)

Median Age: 41.4

Male Median Age: 39.9

Female Median Age: 42.8

Line Chart showing the population by Age Group and Gender of all ZIPs in Alton, Illinois. One line shows the Total population in that age group, another line shows the Male population for that age group, and the last line shows the Female population for the given age group. A table also provides the same information. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	< 5	5-9	10-14	15-19	20-24	25-29	30-34	35-39	40-44	45-49	50-54	55-59	60-64	65-69	70-74	75-79	80-84	85+
Male	1,534	1,604	1,739	1,598	1,588	1,909	1,939	1,934	1,799	1,773	1,864	2,104	2,124	1,766	1,380	879	578	456
Female	1,404	1,549	1,617	1,576	1,417	1,671	1,746	1,685	1,571	1,609	1,681	2,027	2,196	1,921	1,516	1,108	780	747
Total	2,938	3,153	3,356	3,174	3,005	3,580	3,685	3,619	3,370	3,382	3,545	4,131	4,320	3,687	2,896	1,987	1,358	1,203

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Pie Chart & Table (ZIPs)Comparison Chart Pie Chart & Table (Place)

Population by Race

Pie Chart showing Population by Race for all ZIPs in Alton, Illinois. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

White:	20,862	72.06%
Black:	6,680	23.07%
Hispanic:*	753	2.60%
Asian:	211	0.73%
American Indian:	117	0.40%
Hawaiian:	12	0.04%
Other:	317	1.09%
Total:	28,952	100%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Pie Chart & Table (ZIPs)Comparison Chart Pie Chart & Table (Place)

Gender Breakdown

Pie chart showing Male vs Demale share of the population. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Gender	Count	Percentage	Median Age
Males:	14,543	48.19%	39.9 years
Females:	15,633	51.81%	42.8 years
Total:	30,176	100%	41.4 years

All ZIP Codes assigned this City name by the USPS.

Pie Chart showing population of Males vs Females for the U.S. Census Place. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Gender	Count	Percentage	Median Age
Males:	12,320	47.98%	37.2 years
Females:	13,356	52.02%	40.8 years
Total:	25,676	100%	39.3 years

Data for the U.S. Census Place.

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Pie Chart & Table (ZIPs)Pie Chart & Table (Place)

Nativity & Citizenship

Pie chart showing Nativity/Citizenship for all ZIPs in Alton, IL. Categories include native residents (born in the United States, Puerto Rico, U.S. Island Areas, or abroad to American parents) and foreign-born residents. A table below lists counts and percentages. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Native, born in the United States:	54,310	97.15%
Native, born in PR, Island Areas, or abroad:	273	0.49%
Foreign born, naturalized U.S. citizen:	610	1.09%
Foreign born, not a U.S. citizen:	713	2.37%
Total Population:	55,906	100%
Total Native Population:	54,583	97.63%
Total Foreign-born Population:	1,323	2.37%

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment

ZIP Codes in Alton, IL have an average household income of $62,970 (much lower than the State by 22.9%, and lower than the Nation by 19.8%). Family vs nonfamily earnings show a significant gap ($81,048 vs $33,363). Employment participation is lower than the Nation (63.3%). The unemployment rate is 5.1%, which is about the same as the Nation (5.2%).

Explore More: Income Over Time Household Income Employment Status By Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)

Line Chart showing Median Income Estimates from 2011 until 2024 of Median Household Income, Median Family Income, Median Nonfamily Income, Median Male Income, and Median Female Income for all ZIPs in Alton, Illinois. A table also provides the same information. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Income Type	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Median Household Income	$42,227	$42,366	$43,555	$45,220	$46,083	$48,105	$52,141	$53,398	$54,190	$57,405	$57,835	$60,011	$62,970
Median Family Income	$58,330	$56,268	$56,702	$57,946	$58,168	$59,438	$63,161	$67,435	$70,556	$73,416	$76,547	$79,521	$81,048
Median NonFamily Income	$24,208	$24,993	$25,708	$25,699	$26,342	$25,287	$26,133	$26,719	$28,016	$26,714	$30,498	$31,236	$33,363
Median Male Income	$45,021	$46,413	$45,775	$50,302	$50,087	$52,017	$52,254	$54,572	$54,534	$55,872	$55,673	$58,912	$58,796
Median Female Income	$32,240	$33,124	$34,194	$34,780	$34,248	$35,669	$37,781	$38,713	$38,932	$42,271	$43,269	$46,385	$47,922

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income

Bar Chart showing Average Household Income for all ZIPs in Alton, IL, the U.S. Census Place, Madison County, the state of Illinois, and the United States National Average. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Source: U.S. Census 2019-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Pie Chart & Table (ZIPs)Comparison Chart Pie Chart & Table (Place)

Employment Status

Employment status for all ZIPs in Alton, IL: employed, unemployed, and not in the labor force. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Employed:	25,352	55.25%
Unemployed:	1,076	2.34%
Not In Labor Force:	19,461	42.41%
Total:	45,889	100%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Pie Chart & Table (ZIPs)Pie Chart & Table (Place)

Employment by Occupation (Civilian Employed Population, 16 and Over)

Donut Chart showing the distribution of employed civilians aged 16 and over by occupation category: management, service, sales and office, natural resources and construction, and production and transportation. A table with the same data and percentages is provided as well.Load Chart Manually (if needed)

Management, business, science, and arts:	9,168	36.16%
Service:	5,349	21.10%
Sales and Office:	4,466	17.62%
Natural resources, construction, and maintenance:	2,199	8.67%
Production, transportation, and material moving:	4,170	16.45%
Total Civilian Employed Population:	25,352	100%

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability

In Alton, IL, the median home value is $114,300 - much lower than the State by 54.4%, and up $19,400 (20.4%) since 2020. Renters pay an average of $941 per month - much lower than the State by 23.3%, and up $132 (16.3%) since 2020. Most renters in Alton pay under $1,000 (55.4%). About 55.4% pay under $1,000 and 2.5% pay $2,000+; the under $1,000 share is much higher than the Nation. Of occupied housing, owners make up 57.1% (60.2% have a mortgage) and renters make up 42.9% - owners are much lower than the Nation.

Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)

Bar Chart showing median House Value for all ZIPs in Alton, Illinois, the U.S. Census Place, Madison County, Illinois, and the United States National Average. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Median Home Value Over Time (2011-2024)

Line chart showing median home values for ZIP across years 2011-2024 using ACS 5-year estimates. The chart displays the typical dollar value of owner-occupied housing units. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Median Home Value	$92,500	$92,800	$93,800	$90,400	$89,100	$89,400	$90,600	$92,600	$93,300	$94,900	$96,800	$108,100	$114,300

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Pie Chart & Table (ZIPs)Pie Chart & Table (Place)

Gross Rent Paid

Pie Chart showing Gross Rent Paid by renters for all ZIPs in Alton, IL. A table also provides the same information. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Less than $500:	851	11.37%
$500 to $999:	3,495	46.68%
$1,000 to $1,499:	2,274	30.37%
$1,500 to $1,999:	289	3.86%
$2,000 to $2,499:	52	0.69%
$2,500 to $2,999:	34	0.45%
$3,000 or more:	112	1.50%
No Rent:	380	5.08%
Total:	7,487	100%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time (2011-2024)

Line chart displaying median gross rent for ZIP over the years 2011-2024 using ACS 5-year estimates. The chart represents typical monthly housing costs for renter households. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Median Rent	$721	$686	$738	$729	$726	$738	$767	$771	$787	$809	$829	$910	$941

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Pie Chart & Table (ZIPs)Pie Chart & Table (Place)

Housing Occupancy

Pie chart showing housing occupancy for in Alton, IL. Categories include owner-occupied units with a mortgage, owner-occupied units free and clear, and renter-occupied units. A table below lists counts and percentages. Vacant housing units are shown separately in the Vacancy table. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Owner Occupied (with mortgage):	9,085	38.97%
Owner Occupied (free and clear, no mortgage):	6,741	28.92%
Renter Occupied:	7,487	32.12%
Total Occupied Housing Units:	23,313	100%

Occupied Housing Units:	23,313	88.11%
Vacant Housing Units (not graphed):	3,146	11.89%
Total Housing Units:	26,459	100%

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community

21.2% of adults (25+) have a bachelor-s degree or higher, well below the state rate (37.2%) and well below the national average (35.0%). High school or higher is 90.8%, which is about the same as the state rate (90.3%). The share of people in poverty is 13.7%, which is above the state rate (8.2%) and above the national rate (8.7%), about the same as 2011 and down 1.8 percentage points from its 2019 pre-pandemic level.

Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Pie Chart & Table (ZIPs)Pie Chart & Table (Place)

Educational Attainment of Adults (25 and Older)

Pie chart of educational attainment for adults (25+) for all ZIPs in Alton, IL, including each level from less than 9th grade to graduate/professional. Summary rows show high school or higher and bachelor's or higher. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Less than 9th grade:	785	1.94%
9th to 12th grade, no diploma:	2,958	7.31%
High school graduate (includes equivalency):	13,227	32.67%
Some college, no degree:	10,305	25.46%
Associate's degree:	4,223	10.43%
Bachelor's degree:	5,654	13.97%
Graduate or professional degree:	3,331	8.23%
Total:	40,483	100%
High school graduate or higher:	36,740	90.75%
Bachelor's degree or higher:	8,985	22.19%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Pie Chart & Table (ZIPs)Comparison Chart Pie Chart & Table (Place)

Health Insurance Coverage by Type (Private, Public, Uninsured)

Pie chart illustrating health insurance coverage by type for Alton, IL. Categories include private insurance, public coverage such as Medicare and Medicaid, and individuals with no health insurance. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Private Insurance:	34,905	56.86%
Public Insurance:	24,201	39.42%
No Insurance:	2,280	3.71%
Total:	61,386	100%
Has Health Insurance:	59,106	96.29%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)

Line chart displaying the share of families and people in All ZIPs of Nokomis IL whose income falls below the federal poverty threshold, using ACS 5-year estimates from 2011 through 2024. The chart shows year-to-year changes in the percentage of people in poverty. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
% of People in Poverty	13.3%	13.3%	13.8%	15.9%	15.7%	18.6%	19.3%	18.2%	15.5%	15.9%	14.3%	13.6%	13.7%

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

Pie Chart & Table (ZIPs)Pie Chart & Table (Place)

School Enrollment by Education Level (Ages 3 and Older)

Pie Chart showing enrollment of residents ages 3 and older in Nursery School or Preschool, Kindergarten, Elementary (grades 1-8), High School (grades 9-12), and College or Graduate School for all ZIPS in Nokomis, IL.Load Chart Manually (if needed)

Nursery School, Preschool:	793	6.83%
Kindergarten:	639	5.50%
Elementary school (grades 1-8):	5,331	45.90%
High school (grades 9-12):	2,661	22.91%
College or graduate school:	2,191	18.86%
Total:	11,615	100%
Early Childhood:	1,432	12.33%
K-12 (Primary & Secondary School):	8,631	74.31%

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

ZIP Codes:	3 Standard, 0 PO Box [See All]
County:	Madison County, IL
Area Codes:	618,730
Time Zone:	Central (GMT -06:00)
Local Time:	12:00:00 AM
Population:	25,676 (Census Place) [More Demographics]
Statistical Area:	St. Louis, MO-IL [Learn More]
Coordinates:	38.9382, -90.1271
Land Area:	298.44 sq miles (ZIP Codes)
Quick Link:	https://www.zip-codes.com/city/il-alton.asp

Native, born in the United States:	24,668	97.00%
Native, born in PR, Island Areas, or abroad:	167	0.66%
Foreign born, naturalized U.S. citizen:	335	1.32%
Foreign born, not a U.S. citizen:	260	2.34%
Total Population:	25,430	100%
Total Native Population:	24,835	97.66%
Total Foreign-born Population:	595	2.34%

Management, business, science, and arts:	4,007	34.51%
Service:	2,785	23.98%
Sales and Office:	2,151	18.52%
Natural resources, construction, and maintenance:	983	8.47%
Production, transportation, and material moving:	1,686	14.52%
Total Civilian Employed Population:	11,612	100%

Owner Occupied (with mortgage):	3,722	34.43%
Owner Occupied (free and clear, no mortgage):	2,456	22.72%
Renter Occupied:	4,633	42.85%
Total Occupied Housing Units:	10,811	100%

Occupied Housing Units:	10,811	86.40%
Vacant Housing Units (not graphed):	1,702	13.60%
Total Housing Units:	12,513	100%

All ZIP Codes, Map and Demographics of Alton, IL

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Alton, IL has 3 ZIP Codes

Population & Demographics

Population Over Time (with 2010 & 2020 Census Benchmarks)

Population by Age & Gender (Total, Male, Female)

Population by Race

Gender Breakdown

Nativity & Citizenship

Income & Employment

Median Income Over Time (Household, Family, Nonfamily, Male, Female)

Average Household Income

Employment Status

Employment by Occupation (Civilian Employed Population, 16 and Over)

Housing & Affordability

Median Home Value (Comparison)

Median Home Value Over Time (2011-2024)

Gross Rent Paid

Median Gross Rent Over Time (2011-2024)

Housing Occupancy

Education, Health & Community

Educational Attainment of Adults (25 and Older)

Health Insurance Coverage by Type (Private, Public, Uninsured)

Percentage of People in Poverty Over Time (2011-2024)

School Enrollment by Education Level (Ages 3 and Older)

Business & Employment Statistics

Geography, Land Area, and Statistical Classifications

Adjacent & Nearby Cities from Alton, IL

Sources & References

White:	16,380	66.77%
Black:	6,872	28.01%
Hispanic:*	677	2.76%
Asian:	174	0.71%
American Indian:	123	0.50%
Hawaiian:	11	0.04%
Other:	295	1.20%
Total:	24,532	100%

Employed:	11,612	57.73%
Unemployed:	620	3.08%
Not In Labor Force:	7,882	39.19%
Total:	20,114	100%

Less than $500:	560	12.09%
$500 to $999:	1,891	40.82%
$1,000 to $1,499:	1,648	35.57%
$1,500 to $1,999:	211	4.55%
$2,000 to $2,499:	52	1.12%
$2,500 to $2,999:	15	0.32%
$3,000 or more:	45	0.97%
No Rent:	211	4.55%
Total:	4,633	100%

Less than 9th grade:	252	1.43%
9th to 12th grade, no diploma:	1,362	7.74%
High school graduate (includes equivalency):	5,471	31.09%
Some college, no degree:	4,797	27.26%
Associate's degree:	1,989	11.30%
Bachelor's degree:	2,388	13.57%
Graduate or professional degree:	1,337	7.60%
Total:	17,596	100%
High school graduate or higher:	15,982	90.83%
Bachelor's degree or higher:	3,725	21.17%

Private Insurance:	13,150	46.87%
Public Insurance:	13,314	47.46%
No Insurance:	1,592	5.67%
Total:	28,056	100%
Has Health Insurance:	26,464	94.33%

Nursery School, Preschool:	490	8.55%
Kindergarten:	314	5.48%
Elementary school (grades 1-8):	2,887	50.40%
High school (grades 9-12):	1,058	18.47%
College or graduate school:	979	17.09%
Total:	5,728	100%
Early Childhood:	804	14.04%
K-12 (Primary & Secondary School):	4,259	74.35%

# Residential Mailboxes:	13,637Source: USPS
# Business Mailboxes:	941Source: USPS
Total Delivery Receptacles:	14,989Source: USPS
Single Family Delivery Units:	12,074Source: USPS
Multi Family Delivery Units:	769Source: USPS

# of Businesses:	708Source: CBP
1st Quarter Payroll:	$138,873,000Source: CBP
Annual Payroll:	$627,693,000Source: CBP
# of Employees:	11,642Source: CBP

CBSA Name:	St. Louis, MO-ILSource: Census
CBSA Number:	41180Source: Census
CBSA Type:	MetroSource: Census
CBSA Division:	--Source: Census
CBSA Population:	2,809,414Source: Census
MSA:	St. Louis, MO-IL MSASource: Census
PMSA:	--Source: Census

Land Area:	298.436 sq miSource: Census
Water Area:	5.455 sq miSource: Census
Congressional District(s):	00,01,02,03,04,05,06,07,08,09,12,13,14,15,16,17,19,21,23,24,25Source: USPS
Intro Date:	< 2004-10Source: ZIP-Codes.com
Place FIPS Code:	01114Source: Census
Place Name:	Alton city; IllinoisSource: Census