| City: | Buffalo Prairie, Illinois |
| City Alias: | Buffalo Pr |
| County: | Rock Island County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:22:35 PM |
| Population: | 22 [See All] |
| Area Codes: | 309 / 861 |
| Classification: | PO Box |
| Coordinates: | 41.3389, -90.8548 |
| Land Area: | 1.64 sq mi |
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Buffalo Prairie is a small rural community in Rock Island County, Illinois, with a 2020 Census population of 22 residents living in 13 households. Despite its tiny size, the area supports 5 business establishments employing 31 workers, suggesting it serves as a minor employment center for the surrounding agricultural region.
This is designated as a PO Box Only Zone. There's no street delivery available across the community's 0.64 square miles. The Buffalo Prairie post office maintains 11 PO Boxes for the 13 local households, an adoption rate of 85%. One rural carrier route (Route R) serves the area alongside the PO Box system and general delivery.
All 13 housing units are owner-occupied with zero vacancy. The median age is 50.3 years. The ZIP+4 data shows two streets with delivery points: W 206th St (with apartment units) and W 183rd Ave. The small population means most detailed economic and social statistics aren't available from the American Community Survey.
The ZIP classification dates to before October 2004, when USPS tracking began. "Buffalo Pr" is accepted as an abbreviated mailing alias. Buffalo Prairie is roughly 19 miles from Davenport, Iowa, the nearest metropolitan area in the Quad Cities region.
Two numbered streets with directional suffixes typical of rural Illinois grid systems.
ZIP Code 61237 has 22 residents and 13 households (average 1.69 persons per household). The median age is 50.3 years, significantly older than the state (38.8) and significantly older than the nation (38.8). The gender split is 40.9% male and 59.1% female, which is much lower than the national male share (49.1%), making this a female-majority area. Largest groups are White (95.5%, much higher than the state average of 61.4% and well above the national average of 61.6%) and Hispanic or Latino (4.5%); Hispanic or Latino residents make up 4.5%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 22Source: Census DHC |
| 2024 ACS Population Estimate: | 0Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 13.4 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 13Source: Census DHC |
| Average House Value: | $0Source: Census ACS |
| Persons Per Household: | 1.69Source: Census DHC |
| Average Family Size: | 1.50Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Decennial Census | 0 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 22 | -- | -- | -- |
Median Age: 50.3
Male Median Age: 49.5
Female Median Age: 50.8
| 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 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 4 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |
| Female | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 7 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
| Total | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 0 | 4 | 7 | 2 | 2 | 0 | 0 | 0 | 0 | 1 |
| White: | 21 | 95.45% |
| Black: | 0 | 0% |
| Hispanic:* | 1 | 4.55% |
| Asian: | 0 | 0% |
| American Indian: | 0 | 0% |
| Hawaiian: | 0 | 0% |
| Other: | 0 | 0% |
| Total: | 22 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 9 | 40.91% | 49.5 years |
| Females: | 13 | 59.09% | 50.8 years |
| Total: | 22 | 100% | 50.3 years |
| Native, born in the United States: | 0 | 0% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0% |
| Foreign born, naturalized U.S. citizen: | 0 | 0% |
| Foreign born, not a U.S. citizen: | 0 | 0% |
| Total Population: | 0 | 100% |
| Total Native Population: | 0 | 0% |
| Total Foreign-born Population: | 0 | 0% |
ZIP Code 61237 supports both business and residential activity. According to the Business Census (2024), there are 5 business establishments, employing about 30 people with an annual payroll of $795,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 15Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 5Source: CBP |
| 1st Quarter Payroll: | $194,000Source: CBP |
| Annual Payroll: | $795,000Source: CBP |
| # of Employees: | 30Source: CBP |
ZIP Code 61237 is located in Rock Island County, Illinois, within the Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area (CBSA 19340) and Illinois's 17th Congressional District. This Metro area has a population of 381,864 people, about 0.01% of whom live in ZIP Code 61237. It covers 1.64 sq mi of land and a water area of 0 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: | 381,864Source: Census |
| MSA: | Davenport-Moline-Rock Island, IA-IL MSASource: Census |
| Land Area: | 1.64 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: | 1709499Source: Census |
| Place Name: | Buffalo Prairie CDP; IllinoisSource: Census |
We could not locate which school district 61237 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.