What city is ZIP code 61931?

ZIP code 61931 is in Humboldt, IL (Coles County).

What county is ZIP code 61931 in?

ZIP code 61931 is mostly in Coles County, Illinois.

How many people live in ZIP code 61931?

About 1,350 people live in the 61931 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 61931

Humboldt, IL, Coles County

Population

1,350

Land area

32.6sq mi

People per sq mi

City

Humboldt

ZIP 61931 and nearby ZIP codes

Full map

ZIP 61931 at a glance

ZIP 61931 (Humboldt) is 82% less dense than Illinois as a whole.
The median household income is $74,125, 11% below the Illinois median of $83,390.
A typical owner-occupied home is valued at $135,000 (49% below Illinois) and median rent is $851 a month.

Local data for ZIP 61931

Counts from official public data

Housing and community stats

ZIP 61931, American Community Survey 2020-2024

Full profile

Median household income

$74,125

Poverty rate

7.4%

Median home value

$135,000

Median rent

$851/mo

Homeownership

78.6%

Bachelor's or higher

17.0%

Median age

38.8

Average commute

23.2 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

ZIP Business Patterns 2023

Employees

$1.9M annual payroll

PPP loans

$947K

50 loans

Campaign donations

$1,157

0% D, 78% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 61931, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Low

Top: drought

Storm events since 1996

472

Countywide, mostly thunderstorm wind

Flood insurance policies

0.3% of homes, county

July high / Jan low

86° / 20°F

41.3 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 61931, CDC PLACES estimates

All 40 measures

Obesity

37.2%

U.S. 33.3% +3.9 pts

Diabetes

10.9%

U.S. 12.1% -1.2 pts

Smoking

14.1%

U.S. 12.8% +1.3 pts

Uninsured (18-64)

7.4%

U.S. 11.1% -3.7 pts

Frequently asked questions

What city is ZIP code 61931?: ZIP code 61931 is in Humboldt, IL (Coles County).
What county is ZIP code 61931 in?: ZIP code 61931 is mostly in Coles County, Illinois.
How many people live in ZIP code 61931?: About 1,350 people live in the 61931 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.