ZIP Code 52728 in Buffalo, IA

Data Last Updated: February 1, 2026
City:Buffalo, Iowa
County:Scott County
Timezone:Central (GMT -06:00)
Local Time:7:21:24 AM
Population:1,037 [See All]
Area Code:563
Classification:PO Box
Coordinates:41.4616, -90.7284
Land Area:3.072 sq mi
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52728 Buffalo, IA - Mississippi River Community

ZIP Code 52728, Buffalo

Small Town
LocationScott County, IA
Area3.1 sq mi
Population1,037
Households404
PO Boxes456 (113% adoption)
Median Age40.2 years
ZIP CreatedBefore Oct 2004
Key Facts
  • Buffalo is designated as a PO Box Only Zone, meaning no alternative mail delivery exists within the town
  • The post office maintains 456 PO Boxes for 404 households, a 113% adoption rate indicating service to surrounding areas beyond town limits
  • With 473 homes built before 1939 out of 441 total housing units, the vast majority of Buffalo's housing stock dates to the 19th and early 20th centuries
  • Despite being classified as a PO Box ZIP, Buffalo has rural carrier delivery service (one rural route serving 136 delivery points)
  • Front Street along the riverfront has the most delivery points (25 addresses), serving as the town's main thoroughfare
  • About 30% of workers work from home, significantly higher than the typical rural Iowa rate

Community Overview

Buffalo sits along the Mississippi River in Scott County, Iowa, about 9 miles north of Davenport. This small town of 1,037 residents is designated as a PO Box Only Zone, meaning there's no carrier delivery available anywhere in the community. The Buffalo post office maintains 456 PO Boxes for 404 households, a 113% adoption rate that shows the post office serves not just local residents but some people from the surrounding area as well.

Town Layout and Street Pattern

The town layout follows a classic numbered grid. Front Street runs along the riverfront with 25 delivery points, the most of any street in town. Cross streets include 2nd through 6th, along with Franklin, Jefferson, and Washington. The grid breaks into tree-named streets (Oak, Maple, Ash, Walnut) in residential areas. Five streets have secondary units like apartments or basement units, indicating some multi-family housing mixed into the predominantly single-family character.

Historic Housing Character

Buffalo's housing stock is notably historic. With 473 homes built before 1939 and just 441 total housing units, most of the town was constructed in the 19th and early 20th centuries. Home values average $118,300, and 76% of residents own their homes (309 owner-occupied vs 95 renter-occupied). Only 4 homes are used seasonally, confirming this is a year-round residential community.

Demographics and Economy

The population is 1,037 with a median age of 40.2 years. Median household income is $74,318, which is near the national average. About 30% of workers work from home, higher than typical for rural Iowa. The community is 90% white, with 11% identifying as Hispanic or Latino. There are no group quarters populations, so everyone lives in traditional households.

Mail Delivery

Mail delivery uses a single rural route (one R-route carrier). Even though 136 ZIP+4 records look like street addresses, they're served by rural delivery, not city carrier. General Delivery is available at the post office for those without a PO Box. With 20 business establishments employing 308 people, Buffalo functions as a small employment center despite its size.

Mailing to Buffalo

Use this format:

[Name]
PO Box [Number]
Buffalo, IA 52728

This is a PO Box Only Zone. Street addresses won't work for mail delivery.

Street Name Patterns

Numbered Grid Historic Names Riverfront Nature Names

Classic river town grid with Front Street along the Mississippi, numbered cross streets (2nd-6th), and presidential/civic names (Jefferson, Washington, Franklin).

Nearby Areas

Riverview Downtown Davenport Hamburg College Square Cork Hill
Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics


ZIP Code 52728 has 1,037 residents and 404 households (average 2.57 persons per household). The median age is 40.2 years, slightly older than the state (38.6) and slightly older than the nation (38.8). The gender split is 48.1% male and 51.9% female, which is slightly lower than the state male share (49.7%), making this a female-majority area. Largest groups are White (89.6%, much higher than the national average of 61.6%) and Hispanic or Latino (6.8%); Hispanic or Latino residents make up 6.8%, which is much lower than the national average (18.7%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:1,037Source: Census DHC
2024 ACS Population Estimate:984Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:337.6 people per sq mile
Average Income:$69,239Source: Census ACS
Households:404Source: Census DHC
Average House Value:$120,900Source: Census ACS
Persons Per Household:2.57Source: Census DHC
Average Family Size:2.92Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--8108649099861,0691,0931,0751,0551,0701,013862888987984
Decennial Census1,110------------------1,037--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

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


Median Age: 40.2

Male Median Age: 38.9

Female Median Age: 40.6

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male3437413115352338393837303323211068
Female2643443718273729362343386317182667
Total608085683362606775618068964039361215
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:92990.99%
Black:10.10%
Hispanic:*706.86%
Asian:50.49%
American Indian:20.20%
Hawaiian:00%
Other:141.37%
Total:1,021100%
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.

Gender Breakdown


GenderCount%Median Age
Males:49948.12%38.9 years
Females:53851.88%40.6 years
Total:1,037100%40.2 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:96598.07%
Native, born in PR, Island Areas, or abroad:80.81%
Foreign born, naturalized U.S. citizen:111.12%
Foreign born, not a U.S. citizen:01.12%
Total Population:984100%
Total Native Population:97398.88%
Total Foreign-born Population:111.12%
Source: U.S. Census 2020-2024 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


In 2024, the Median household income is $69,239, which is well under the national median ($80,734), is up $23,941 (52.9%) since 2011 and above its 2019 pre-pandemic level by $7,989. Family households earn a median of $69,946 versus $60,804 for nonfamily households (a difference of $9,142). By gender, male median income is $68,333 and female is $45,083, which is considerably lower than the national female median ($55,274), with a current gap of $23,250 that has widened from 2011 to 2024. The labor-force participation rate is 66.5%, which is higher than the national rate (63.5%). The unemployment rate is 2.3%, which is much lower than the national rate (5.2%). The largest occupation group is Management (32.9%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy 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)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$45,298$45,592$43,819$42,833$44,792$47,734$51,667$55,083$61,250$73,004$69,342$74,333$74,318$69,239
Median Family Income$56,458$56,625$48,906$48,864$49,779$54,773$60,326$62,250$68,274$80,294$66,406$71,250$68,750$69,946
Median NonFamily Income$21,406$21,389$21,389$22,500$32,031$30,893$35,395$31,806$27,083$65,917$54,167$58,333$59,453$60,804
Median Male Income$52,083$52,778$44,792$41,538$0$40,972$41,953$49,491$57,765$65,583$64,929$71,382$70,625$68,333
Median Female Income$30,714$30,714$30,481$30,063$0$26,700$30,511$30,893$31,053$34,375$36,204$39,091$39,583$45,083
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:50264.94%
Unemployed:121.55%
Not In Labor Force:25933.51%
Total:773100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

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


Management, business, science, and arts:16532.87%
Service:7715.34%
Sales and Office:10821.51%
Natural resources, construction, and maintenance:8015.94%
Production, transportation, and material moving:7214.34%
Total Civilian Employed Population:502100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2024, the median home value is $120,900, which is well under the national median ($332,700), is up $24,000 (24.77%) since 2011 and above its 2019 pre-pandemic level by $6,800. The median gross rent is $769, which is much lower than the national median ($1,413), is up $244 (46.48%) since 2011 and above its 2019 pre-pandemic level by $369. Of occupied housing, owners make up 76.61% (66.17% with a mortgage, 33.83% free-and-clear) and renters 23.39% - making this ZIP Code under national rental averages. The vacancy rate is 12.63%, which is much higher than the national rate (10.12%).

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing 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)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$96,900$96,400$95,500$99,900$99,000$98,500$109,300$118,300$114,100$110,300$108,900$123,800$118,300$120,900
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:2221.57%
$500 to $999:4847.06%
$1,000 to $1,499:1312.75%
$1,500 to $1,999:00.00%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:1918.63%
Total:102100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$525$492$572$606$598$590$550$483$400$575$644$758$812$769
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):22150.69%
Owner Occupied (free and clear, no mortgage):11325.92%
Renter Occupied:10223.39%
Total Occupied Housing Units:436100%

Occupied Housing Units:43687.37%
Vacant Housing Units (not graphed):6312.63%
Total Housing Units:499100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:46993.99%
Multi-Family Units:306.01%
Other Units:00.00%
Total Housing Units:499100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 12.20% 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 87.50%, which is comparable to the national rate (89.60%). The uninsured rate is 2.20%, which is far lower than the national rate (8.40%). The share of people in poverty is 19.00%, which is comparable to the national rate (8.80%), up 15.40 percentage points since 2011 and above its 2019 pre-pandemic level by 16.70 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 (52.55%). College enrollment is 3.14%, 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

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

Educational Attainment of Adults (25 and Older)


Less than 9th grade:355.49%
9th to 12th grade, no diploma:457.05%
High school graduate (includes equivalency):16826.33%
Some college, no degree:22935.89%
Associate's degree:8313.01%
Bachelor's degree:609.40%
Graduate or professional degree:182.82%
Total:638100%
High school or higher:55887.46%
Bachelor's degree or higher:7812.23%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

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


Private Insurance:71864.80%
Public Insurance:36833.21%
No Insurance:221.99%
Total:1,108100%
Has Health Insurance:1,08698.01%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

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


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty1.3%1.3%2.5%1.6%1.0%1.0%1.0%0.0%0.0%0.0%5.4%10.8%16.7%19.0%
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.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:2610.20%
Kindergarten:135.10%
Elementary school (grades 1-8):13452.55%
High school (grades 9-12):7429.02%
College or graduate school:83.14%
Total:255100%
Early Childhood:3915.29%
K-12 (Primary & Secondary School):22186.67%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 52728 supports both business and residential activity. According to the Business Census (2024), there are 22 business establishments, employing about 324 people with an annual payroll of $26,220,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:513Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:22Source: CBP
1st Quarter Payroll:$6,992,000Source: CBP
Annual Payroll:$26,220,000Source: CBP
# of Employees:324Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 52728 is located in Scott County, Iowa, within the Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area (CBSA 19340) and Iowa's 1st Congressional District. This Metro area has a population of 379,690 people, about 0.27% of whom live in ZIP Code 52728. It covers 3.072 sq mi of land and a water area of 1.046 sq mi.

CBSA Name:Davenport-Moline-Rock Island, IA-ILSource: Census
CBSA Number:19340Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:379,690Source: Census
MSA:Davenport-Moline-Rock Island, IA-IL MSASource: Census
Land Area:3.072 sq miSource: Census
Water Area:1.046 sq miSource: Census
Congressional District:01Source: USPS
Congressional Land Area:12048.84 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:1909235Source: Census
Place Name:Buffalo city; IowaSource: Census

Adjacent & Nearby ZIP Codes


52729 | | 52727

Schools in ZIP Code 52728


ZIP Code 52728 is in the Davenport Community School District, which serves grades Pre-Kindergarten thru 12th. There are 1 public school(s) in this ZIP Code, and we have located 3 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Buffalo Elementary School 1000 Jefferson Street
Buffalo, IA 52728
District: Davenport Community School District
Jordan Catholic School 2901 24th St
Rock Island, IL 61201
District: Private SchoolNearby
All Saints Catholic School 1926 N Marquette St
Davenport, IA 52804
District: Private SchoolNearby
Trinity Lutheran Church School 1122 W Central Park Ave
Davenport, IA 52804
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 52728


Trinity College Of Nursing & Health Sciences 2122 25th Avenue
Rock Island, IL 61201-5317
Type: Post Secondary
Eastern Iowa Community College District 101 W Third Street
Davenport, IA 52801-1221
Type: Post Secondary
Palmer College Of Chiropractic 1000 Brady St
Davenport, IA 52803-5287
Type: Post Secondary
Saint Ambrose University 518 W Locust St
Davenport, IA 52803-2898
Type: Post Secondary
Augustana College 639 38th St
Rock Island, IL 61201-2296
Type: Post Secondary
Ross College-Davenport 1801 East Kimberly Road, Suite B
Davenport, IA 52807-2095
Type: Post Secondary

Sources & References


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.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov