Residential delivery area · Illinois
ZIP Code 62321: Carthage, IL
ZIP code 62321 uses the postal name Carthage, Illinois and lies entirely in Hancock County (Census 2020 ZIP-county file). About 3,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $76,825 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Carthage (2%), Ferris (1%) and Bentley (under 1%); 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Carthage · its only residential ZIP
- County
- Hancock County
- Census places
- Carthage (2%); Ferris (1%); Bentley (under 1%)
- House district
- IL-15 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 167.6 sq mi · 21 people per sq mi
Where is ZIP code 62321?
62321 centers on 40.410°, -91.095° and covers 167.6 square miles of land plus 0.2 of water. It borders 12 ZIP codes: 62336, 62334, 62313, 62374, 62341, 62330, 62316, 61450, 62380, 62367 and more.
The map draws ZIP code areas only. For the streets inside 62321, 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 62321 compare with the rest of Hancock County?
| Measure | 62321 | In Hancock County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 3,576 | 1st of 20 | 538th of 1,396 |
| Median household income | $77k | 1st of 6 | 428th of 797 |
| Median home value | $124k | 5th of 9 | 651st of 842 |
Its median household income is higher than in 58% of U.S. residential ZIP codes, and it is denser than 27% 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 62321?
The 2020 Census counted 3,873 people in 62321; the ACS, which samples households over 2020-2024, estimates 3,576. Between the 2010 and 2020 censuses its population fell 5.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,576
- 2020 Census count
- 3,873−5.3% since 2010 (4,091)
- Households
- 1,564
- Median age
- 47.5
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 62321?
Of the 3,576 people the ACS estimates in 62321, 18.9% are under 18 and 24.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (89.5%).
- Under 1818.9%
- 18 to 6456.9%
- 65 and older24.3%
- White, not Hispanic89.5%
- Hispanic or Latino4.9%
- Other or two or more4.1%
- Black, not Hispanic1.0%
- Asian, not Hispanic0.4%
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 62321 earn?
Median household income is $76,825 (ACS 2020-2024), the highest of the 6 ranked ZIP codes in Hancock County. It is not measurably different from 2015-2019 ($67,454 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $76,825±$8,440
- Income per person
- $39,795
- Below the poverty line
- 7.3%
- Unemployed (of the labor force)
- 1.9%
- Adults 25+ with a bachelor's degree
- 31.3%
- Adjusted gross income per tax return, 2022
- $84,9841,890 returns; wages 52% 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 62321?
FHFA's house price index for 62321, built from repeat sales and appraisals of the same homes, rose 62% from 2015 to 2025 and rose 44% from 2020 to 2025, and moved +4.6% in 2025.
- Median home value (owners' estimate)
- $123,700
- Median gross rent
- $678
- Homes owned by their occupants
- 77.5%
- Housing units
- 1,834
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 62321?
123 business establishments had a location in this ZIP code in 2023, 3 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade23
- Other services (except public administration)19
- Construction11
- Health care and social assistance11
- Accommodation and food services10
- Professional, scientific, and technical services9
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 62321?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 62336 | Ferris | 84 | $43k | 5.7 mi |
| 62334 | Elvaston | 163 | $39k | 8.1 mi |
| 62313 | Basco | 382 | $109k | 9.5 mi |
| 62374 | Tennessee | 216 | $79k | 9.7 mi |
| 62341 | Hamilton | 3,433 | $62k | 10.9 mi |
| 62330 | Dallas City | 1,472 | $61k | 11.3 mi |
| 62316 | Bowen | 705 | $61k | 12.2 mi |
| 61450 | La Harpe | 1,812 | $60k | 12.6 mi |
| 62380 | West Point | 360 | $75k | 12.9 mi |
| 62367 | Plymouth | 1,294 | $58k | 14.3 mi |
| 62326 | Colchester | 2,236 | $65k | 14.9 mi |
| 62354 | Nauvoo | 1,447 | $73k | 14.9 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.