Residential delivery area · Illinois
ZIP Code 61462: Monmouth, IL
ZIP code 61462 uses the postal name Monmouth, Illinois and lies mostly in Warren County (96% of its land) with the rest in Henderson County (Census 2020 ZIP-county file). About 10,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,113 (Census Bureau, ACS 2020-2024). By Census place, 3% of its land lies in Monmouth; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Monmouth · its only residential ZIP
- County
- Warren County (96%); Henderson County (4%)
- Census places
- Monmouth
- House districts
- IL-15 (64%), IL-17 (36%) 119th Congress, by share of land
- State
- Illinois
- Time zone
- Central
- Land area
- 142.2 sq mi · 74 people per sq mi
Where is ZIP code 61462?
61462 centers on 40.910°, -90.652° and covers 142.2 square miles of land plus 0.2 of water. It borders 8 ZIP codes: 61447, 61435, 61423, 61453, 61417, 61478, 61473, 61410.
The map draws ZIP code areas only. For the streets inside 61462, 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 61462 compare with the rest of Warren County?
| Measure | 61462 | In Warren County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 10,458 | 2nd of 14 | 362nd of 1,396 |
| Median household income | $64k | 2nd of 5 | 600th of 797 |
| Median home value | $103k | 4th of 6 | 754th of 842 |
Its median household income is higher than in 37% of U.S. residential ZIP codes, and it is denser than 49% of all 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 61462?
The 2020 Census counted 10,980 people in 61462; the ACS, which samples households over 2020-2024, estimates 10,458. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 10,458
- 2020 Census count
- 10,980
- Households
- 4,239
- Median age
- 36.8
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 61462?
Of the 10,458 people the ACS estimates in 61462, 22.6% are under 18 and 19.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (74.0%), then Hispanic or Latino (15.7%).
- Under 1822.6%
- 18 to 6457.8%
- 65 and older19.6%
- White, not Hispanic74.0%
- Hispanic or Latino15.7%
- Black, not Hispanic3.7%
- Asian, not Hispanic3.5%
- Other or two or more3.2%
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 61462 earn?
Median household income is $64,113 (ACS 2020-2024), the 2nd highest of the 5 ranked ZIP codes in Warren County.
- Median household income
- $64,113±$8,505
- Income per person
- $33,178
- Below the poverty line
- 15.5%
- Unemployed (of the labor force)
- 3.1%
- Adults 25+ with a bachelor's degree
- 22.4%
- Adjusted gross income per tax return, 2022
- $60,3594,660 returns; wages 66% 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 61462?
FHFA's house price index for 61462, built from repeat sales and appraisals of the same homes, rose 23% from 2015 to 2025 and rose 17% from 2020 to 2025, and moved −2.6% in 2025.
- Median home value (owners' estimate)
- $102,900
- Median gross rent
- $729
- Homes owned by their occupants
- 71.5%
- Housing units
- 4,826
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 61462?
259 business establishments had a location in this ZIP code in 2023, 5 fewer than in 2018; the most are in other services (except public administration) (ZIP Code Business Patterns).
- Other services (except public administration)41
- Retail trade38
- Accommodation and food services33
- Health care and social assistance32
- Construction18
- Transportation and warehousing16
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 61462?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61447 | Kirkwood | 1,020 | $83k | 6.4 mi |
| 61435 | Gerlaw | 271 | – | 7.3 mi |
| 61423 | Cameron | 638 | $79k | 8.0 mi |
| 61453 | Little York | 677 | $58k | 9.2 mi |
| 61417 | Berwick | 182 | $106k | 11.0 mi |
| 61478 | Smithshire | 420 | $76k | 12.0 mi |
| 61473 | Roseville | 1,279 | $61k | 13.9 mi |
| 61410 | Abingdon | 3,838 | $63k | 14.4 mi |
| 61418 | Biggsville | 575 | $84k | 12.2 mi (near) |
| 61412 | Alexis | 1,392 | $82k | 12.2 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.