| City: | Henderson, Illinois |
| County: | Knox County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:11:50 AM |
| Population: | 274 [See All] |
| Area Codes: | 309 / 861 |
| Classification: | PO Box |
| Coordinates: | 41.0276, -90.3603 |
| Land Area: | 1.25 sq mi |
| Quick Link: |
Henderson is a small Illinois town in Knox County with 274 residents and 126 households spread across less than half a square mile. This is a PO Box Only Zone, meaning there's no alternative mail delivery across the entire community. The post office maintains 120 PO Boxes for 126 households, giving it a 95% adoption rate.
Mail arrives via two rural carrier routes serving streets like N Main Street, S State Street, and McMurtry Drive. The numbered grid pattern (N 1st Street, N 3rd Street) shows this was once a planned town, likely from the 19th century. In fact, 92% of housing units were built before 1939, making this one of Illinois' most architecturally intact historic small towns.
With a median age of 46.5 and median home values around $97,500, Henderson is a quiet, working-class community. About 85% of homes are owner-occupied. The town has five business delivery points but no reported establishments, suggesting most residents commute elsewhere for work. 26% of workers work from home, higher than typical for rural Illinois.
Because this is a PO Box Only Zone, all mail must be addressed to PO Boxes. Use this format:
[Recipient Name]
PO Box [Number]
Henderson, IL 61439Rural route addresses within the ZIP boundaries are served, but standard street addresses won't work for most deliveries.
Classic small-town grid with numbered streets (1st, 3rd) and directional Main/State streets typical of 19th-century Illinois railroad towns.
ZIP Code 61439 has 274 residents and 126 households (average 2.17 persons per household). The median age is 46.5 years, significantly older than the state (38.8) and significantly older than the nation (38.8). The gender split is 53.6% male and 46.4% female, which is higher than the state male share (49.0%), making this a male-majority area. Largest groups are White (91.2%, much higher than the state average of 61.4% and well above the national average of 61.6%) and Hispanic or Latino (3.6%); Hispanic or Latino residents make up 3.6%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 274Source: Census DHC |
| 2024 ACS Population Estimate: | 299Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 219.2 people per sq mile |
| Average Income: | $59,125Source: Census ACS |
| Households: | 126Source: Census DHC |
| Average House Value: | $113,900Source: Census ACS |
| Persons Per Household: | 2.17Source: Census DHC |
| Average Family Size: | 2.97Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 411 | 330 | 282 | 223 | 232 | 220 | 214 | 242 | 215 | 277 | 246 | 250 | 268 | 299 |
| Decennial Census | 269 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 274 | -- | -- | -- | -- |
Median Age: 46.5
Male Median Age: 43.6
Female Median Age: 48.4
| 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 | 7 | 13 | 6 | 12 | 9 | 5 | 3 | 8 | 14 | 10 | 6 | 6 | 18 | 9 | 4 | 6 | 4 | 7 |
| Female | 5 | 7 | 8 | 8 | 5 | 4 | 8 | 8 | 4 | 11 | 10 | 6 | 5 | 12 | 5 | 8 | 10 | 3 |
| Total | 12 | 20 | 14 | 20 | 14 | 9 | 11 | 16 | 18 | 21 | 16 | 12 | 23 | 21 | 9 | 14 | 14 | 10 |
| White: | 250 | 94.34% |
| Black: | 3 | 1.13% |
| Hispanic:* | 10 | 3.77% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 2 | 0.75% |
| Total: | 265 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 147 | 53.65% | 43.6 years |
| Females: | 127 | 46.35% | 48.4 years |
| Total: | 274 | 100% | 46.5 years |
| Native, born in the United States: | 290 | 96.99% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 4 | 1.34% |
| Foreign born, not a U.S. citizen: | 5 | 3.01% |
| Total Population: | 299 | 100% |
| Total Native Population: | 290 | 96.99% |
| Total Foreign-born Population: | 9 | 3.01% |
In 2024, the Median household income is $59,125, which is considerably lower than the national median ($80,734), is up $12,562 (27.0%) since 2011 and above its 2019 pre-pandemic level by $1,446. Family households earn a median of $70,156 versus $43,750 for nonfamily households (a difference of $26,406). By gender, male median income is $42,212 and female is $34,688, which is considerably lower than the national female median ($55,274), with a current gap of $7,524 that has narrowed from 2011 to 2024. The labor-force participation rate is 63.6%, which is comparable to the national rate (63.5%). The unemployment rate is 7.6%, which is markedly higher than the national rate (5.2%). The largest occupation group is Management (28.1%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $46,563 | $52,857 | $50,625 | $48,542 | $48,333 | $47,917 | $49,500 | $52,250 | $57,679 | $52,500 | $49,583 | $55,500 | $56,429 | $59,125 |
| Median Family Income | $58,750 | $62,500 | $62,679 | $59,375 | $59,167 | $58,750 | $61,563 | $60,556 | $63,194 | $62,708 | $61,875 | $66,667 | $66,250 | $70,156 |
| Median NonFamily Income | $12,292 | $15,417 | $18,750 | $24,375 | $23,750 | $37,500 | $37,500 | $34,688 | $31,250 | $33,250 | $31,250 | $27,250 | $0 | $43,750 |
| Median Male Income | $35,500 | $46,111 | $41,250 | $38,750 | $40,000 | $37,000 | $49,500 | $50,625 | $54,375 | $53,125 | $62,917 | $68,333 | $0 | $42,212 |
| Median Female Income | $26,375 | $27,250 | $29,375 | $37,188 | $37,000 | $37,917 | $41,000 | $40,313 | $43,750 | $44,375 | $0 | $37,500 | $31,875 | $34,688 |
| Employed: | 121 | 58.74% |
| Unemployed: | 10 | 4.85% |
| Not In Labor Force: | 75 | 36.41% |
| Total: | 206 | 100% |
| Management, business, science, and arts: | 34 | 28.10% |
| Service: | 29 | 23.97% |
| Sales and Office: | 18 | 14.88% |
| Natural resources, construction, and maintenance: | 23 | 19.01% |
| Production, transportation, and material moving: | 17 | 14.05% |
| Total Civilian Employed Population: | 121 | 100% |
In 2024, the median home value is $113,900, which is much lower than the national median ($332,700), is up $24,700 (27.69%) since 2011 and above its 2019 pre-pandemic level by $30,400. The median gross rent is $663, which is well under the national median ($1,413), is down $5 (0.75%) since 2011 and below its 2019 pre-pandemic level by $58. Of occupied housing, owners make up 69.92% (59.30% with a mortgage, 40.70% free-and-clear) and renters 30.08% - making this ZIP Code under national rental averages. The vacancy rate is 9.56%, which is considerably lower than the national rate (10.12%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $89,200 | $67,500 | $71,300 | $69,800 | $77,100 | $74,400 | $73,800 | $82,500 | $83,500 | $82,500 | $79,500 | $95,600 | $97,500 | $113,900 |
| Less than $500: | 8 | 21.62% |
| $500 to $999: | 20 | 54.05% |
| $1,000 to $1,499: | 9 | 24.32% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 0 | 0.00% |
| Total: | 37 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $668 | $664 | $666 | $710 | $713 | $645 | $688 | $728 | $721 | $900 | $775 | $833 | $625 | $663 |
| Owner Occupied (with mortgage): | 51 | 41.46% |
| Owner Occupied (free and clear, no mortgage): | 35 | 28.46% |
| Renter Occupied: | 37 | 30.08% |
| Total Occupied Housing Units: | 123 | 100% |
| Occupied Housing Units: | 123 | 90.44% |
| Vacant Housing Units (not graphed): | 13 | 9.56% |
| Total Housing Units: | 136 | 100% |
| Single-Family Units: | 109 | 80.15% |
| Multi-Family Units: | 20 | 14.71% |
| Other Units: | 7 | 5.15% |
| Total Housing Units: | 136 | 100% |
In 2024, 20.20% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 76.70%, which is comparable to the national rate (89.60%). The uninsured rate is 10.70%, which is comparable to the national rate (8.40%). The share of people in poverty is 10.10%, which is comparable to the national rate (8.80%), up 13.50 percentage points since 2011 and above its 2019 pre-pandemic level by 6.50 percentage points. This signals a sharp increase in hardship - a shrinking consumer base, heavy pressure on public services, and job-market contraction risks. Among residents ages 3+, the largest enrollment group is elementary (54.43%). College enrollment is 10.13%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 14 | 8.59% |
| 9th to 12th grade, no diploma: | 24 | 14.72% |
| High school graduate (includes equivalency): | 47 | 28.83% |
| Some college, no degree: | 25 | 15.34% |
| Associate's degree: | 20 | 12.27% |
| Bachelor's degree: | 29 | 17.79% |
| Graduate or professional degree: | 4 | 2.45% |
| Total: | 163 | 100% |
| High school or higher: | 125 | 76.69% |
| Bachelor's degree or higher: | 33 | 20.25% |
| Private Insurance: | 191 | 52.04% |
| Public Insurance: | 144 | 39.24% |
| No Insurance: | 32 | 8.72% |
| Total: | 367 | 100% |
| Has Health Insurance: | 335 | 91.28% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 1.7% | 1.2% | 1.4% | 5.0% | 8.1% | 7.4% | 10.0% | 5.4% | 8.7% | 19.0% | 19.3% | 18.3% | 15.2% | 10.1% |
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.
| Nursery School, Preschool: | 9 | 11.39% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 43 | 54.43% |
| High school (grades 9-12): | 19 | 24.05% |
| College or graduate school: | 8 | 10.13% |
| Total: | 79 | 100% |
| Early Childhood: | 9 | 11.39% |
| K-12 (Primary & Secondary School): | 62 | 78.48% |
ZIP Code 61439 is designated for PO Box delivery only; business establishment and employment data are not available.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 124Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 0Source: CBP |
| 1st Quarter Payroll: | $0Source: CBP |
| Annual Payroll: | $0Source: CBP |
| # of Employees: | 0Source: CBP |
ZIP Code 61439 is located in Knox County, Illinois, within the Galesburg, IL Metropolitan Statistical Area (CBSA 23660) and Illinois's 17th Congressional District. This Micro area has a population of 70,626 people, about 0.39% of whom live in ZIP Code 61439. It covers 1.25 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Galesburg, ILSource: Census |
| CBSA Number: | 23660Source: Census |
| CBSA Type: | MicroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 70,626Source: Census |
| MSA: | Source: Census |
| Land Area: | 1.25 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 17Source: USPS |
| Congressional Land Area: | 6933.08 sq miSource: Census |
| PMSA: | Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 1734007Source: Census |
| Place Name: | Henderson village; IllinoisSource: Census |
We could not locate which school district 61439 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.