Residential delivery area · Illinois
ZIP Code 61951: Sullivan, IL
ZIP code 61951 uses the postal name Sullivan, Illinois and lies mostly in Moultrie County (98% of its land) with the rest in Coles County (Census 2020 ZIP-county file). About 7,800 people live there (Census Bureau, ACS 2020-2024). Median household income is $71,905 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Sullivan (2%) and Allenville (under 1%); 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Sullivan · its only residential ZIP
- County
- Moultrie County (98%); Coles County (2%)
- Census places
- Sullivan (2%); Allenville (under 1%)
- House district
- IL-15 119th Congress
- State
- Illinois
- Time zone
- Central
- Land area
- 132.1 sq mi · 59 people per sq mi
Where is ZIP code 61951?
61951 centers on 39.596°, -88.590° and covers 132.1 square miles of land plus 8.0 of water. It borders 8 ZIP codes: 61914, 61911, 61937, 61957, 61928, 61931, 62534, 61938.
The map draws ZIP code areas only. For the streets inside 61951, 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 61951 compare with the rest of Moultrie County?
| Measure | 61951 | In Moultrie County | In IL |
|---|---|---|---|
| People (ACS 2020-2024) | 7,787 | 1st of 8 | 408th of 1,396 |
| Median household income | $72k | 3rd of 5 | 489th of 797 |
| Median home value | $151k | 2nd of 6 | 555th of 842 |
Its median household income is higher than in 50% of U.S. residential ZIP codes, and it is denser than 45% 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 61951?
The 2020 Census counted 8,057 people in 61951; the ACS, which samples households over 2020-2024, estimates 7,787. Between the 2010 and 2020 censuses its population grew 0.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 7,787
- 2020 Census count
- 8,057+0.5% since 2010 (8,017)
- Households
- 3,078
- Median age
- 40.6
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 61951?
Of the 7,787 people the ACS estimates in 61951, 24.3% are under 18 and 18.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.4%).
- Under 1824.3%
- 18 to 6457.6%
- 65 and older18.1%
- White, not Hispanic96.4%
- Other or two or more1.5%
- Black, not Hispanic1.3%
- Hispanic or Latino0.8%
- 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 61951 earn?
Median household income is $71,905 (ACS 2020-2024), the 3rd highest of the 5 ranked ZIP codes in Moultrie County. It is not measurably different from 2015-2019 ($79,418 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $71,905±$9,791
- Income per person
- $40,169
- Below the poverty line
- 7.1%
- Unemployed (of the labor force)
- 1.7%
- Adults 25+ with a bachelor's degree
- 22.2%
- Adjusted gross income per tax return, 2022
- $86,7283,720 returns; wages 56% 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 61951?
FHFA's house price index for 61951, built from repeat sales and appraisals of the same homes, rose 64% from 2015 to 2025 and rose 43% from 2020 to 2025, and moved +15.4% in 2025.
- Median home value (owners' estimate)
- $150,900
- Median gross rent
- $825
- Homes owned by their occupants
- 78.2%
- Housing units
- 3,271
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 61951?
201 business establishments had a location in this ZIP code in 2023, the same count as in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction33
- Health care and social assistance25
- Manufacturing23
- Retail trade22
- Other services (except public administration)21
- Accommodation and food services18
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 61951?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 61914 | Bethany | 1,771 | $63k | 9.5 mi |
| 61911 | Arthur | 4,508 | $83k | 9.7 mi |
| 61937 | Lovington | 1,782 | $61k | 10.2 mi |
| 61957 | Windsor | 1,707 | $76k | 10.7 mi |
| 61928 | Gays | 776 | $118k | 10.8 mi |
| 61931 | Humboldt | 1,350 | $74k | 11.9 mi |
| 62534 | Findlay | 1,041 | $69k | 12.1 mi |
| 61938 | Mattoon | 20,350 | $58k | 14.0 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.