Residential delivery area · Illinois
ZIP Code 61257: Hillsdale, IL
ZIP code 61257 uses the postal name Hillsdale, Illinois and lies entirely in Rock Island County (Census 2020 ZIP-county file). About 840 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,107 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Joslin (11%), East Moline (6%) and Hillsdale (2%); 82% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2024
- ZBP2023
- IRS2022
- Town
- Hillsdale · its only residential ZIP
- County
- Rock Island County
- Census places
- Joslin (11%) census-designated place; East Moline (6%); Hillsdale (2%)
- Metro area
- Davenport-Moline-Rock Island, IA-IL
- House district
- IL-17 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 41.3 sq mi · 20 people per sq mi
Where is ZIP code 61257?
61257 centers on 41.593°, -90.222° and covers 41.3 square miles of land plus 1.1 of water. It borders 7 ZIP codes: 61275, 61250, 61242, 61241, 61254, 61230, 61244.
The map draws ZIP code areas only. For the streets inside 61257, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 61257 compare with the rest of Rock Island County?
| Measure | 61257 | In Rock Island County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 844 | 18th of 21 | 961st of 1,396 |
| Median household income | $64k | not ranked | not ranked |
| Median home value | $117k | not ranked | not ranked |
61257's income and home value are not ranked: it has fewer than 1,000 residents (844). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 26% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 61257?
The 2020 Census counted 1,097 people in 61257; the ACS, which samples households over 2020-2024, estimates 844. Between the 2010 and 2020 censuses its population fell 9.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 844±187 (90% margin)
- 2020 Census count
- 1,097−9.3% since 2010 (1,210)
- Households
- 381
- Median age
- 50.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 61257?
Of the 844 people the ACS estimates in 61257, 18.5% are under 18 and 27.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (87.4%).
- Under 1818.5%
- 18 to 6454.3%
- 65 and older27.3%
- White, not Hispanic87.4%
- Hispanic or Latino7.0%
- Other or two or more5.3%
- Black, not Hispanic0.2%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 61257 earn?
Median household income is $64,107 (ACS 2020-2024). It is not measurably different from 2015-2019 ($73,384 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $64,107±$36,324
- Income per person
- $37,854
- Below the poverty line
- 12.1%
- Unemployed (of the labor force)
- 8.0%
- Adults 25+ with a bachelor's degree
- 9.4%
- Adjusted gross income per tax return, 2022
- $73,383480 returns; wages 70% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 61257?
- Median home value (owners' estimate)
- $117,200
- Median gross rent
- $1,193
- Homes owned by their occupants
- 76.4%
- Housing units
- 481
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 61257?
18 business establishments had a location in this ZIP code in 2023, 1 fewer than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services4
- Administrative and support and waste management and remediation services3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 61257?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61275 | Port Byron | 4,253 | $108k | 4.5 mi |
| 61250 | Erie | 2,781 | $85k | 7.1 mi |
| 61242 | Cordova | 1,135 | $104k | 8.6 mi |
| 61241 | Colona | 6,587 | $80k | 8.9 mi |
| 61254 | Geneseo | 12,135 | $92k | 9.5 mi |
| 61230 | Albany | 1,039 | $62k | 9.7 mi |
| 61244 | East Moline | 23,308 | $64k | 10.0 mi |
| 61278 | Rapids City | 678 | $70k | 5.9 mi (near) |
| 52753 | Le Claire, IA | 6,020 | $104k | 8.8 mi (near) |
| 61236 | Barstow | 34 | $78k | 8.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.