PlainZIP

Humboldt, IL · standard

ZIP Code 61931

Coles County, Illinois - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,255
15/sq mi
$74,125
Median income
$135,000
Median home value
17.0%
Bachelor's or higher

The verdict

Humboldt pairs an above-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.

Top 47%
household income, US ZIPs
21th pct
home value, US ZIPs
15
people per sq mi
79%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 61931 against every reporting US ZIP.

ZIP code 61931 is a sparsely populated ZIP (a standard USPS delivery area) in Humboldt, Coles County, Illinois, home to just 1,255 residents across 82.6 square miles, a density of 15 people per square mile, in the Chicago time zone.

ZIP 61931 lands in the middle-income range, with a median household income of $74,125 (7% below the Illinois average), while per-capita income is $32,710. Local economic indicators show a 7.4% poverty rate alongside 8.3% unemployment. On housing, the median home value is $135,000 (30% below the state average) with median rent at $851 per month, and 78.6% of occupied units are owner-occupied.

Educational attainment sits below the national norm: 17.0% of adults hold a bachelor's degree or higher, the median age is 38.8, and the average commute is -. A geography-based comparison follows: 3 ZIP codes within about 10 miles of 61931, plus 4 more within Coles County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 61931, Humboldt, IL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

1,255

Population

82.6

Area (sq mi)

15

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 61931?

38.8

Median Age

49.6%

Male

50.4%

Female

5.9%

Foreign-Born

White 85.0%
African American 0.1%
Asian 0.2%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 8.7%
Hispanic or Latino 14.4%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$74,125

Median Household Income

-7% vs state

$32,710

Per Capita Income

7.4%

Poverty Rate

8.3%

Unemployment Rate

How ZIP 61931 ranks nationally

Humboldt, IL household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$74,125 Top 47% higher than 53% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 53.6%
Bachelor's Degree or Higher 17.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

513

Total Housing Units

501

Occupied Units

12

Vacant Units

2.69

Avg Household Size

Occupancy Type

Owner 78.6%
Renter 21.4%

$135,000

Median Home Value

-30% vs state

$851

Median Rent

1979

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 16 business establishments in ZIP 61931, employing approximately 46 people with a combined annual payroll of $1,902,000.

16

Businesses

46

Employees

$1.9M

Annual Payroll

2

Industry Sectors

Industry Establishments % of Total
Construction 6 37.5%
Wholesale trade 3 18.8%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 61931 vs 61938 →

ZIP 61931 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 61931 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 61931 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 61931 ranks #3 of 4 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
61938 Mattoon, IL 22,409 7.4 mi
61910 Arcola, IL 4,463 6.5 mi
61911 Arthur, IL 4,860 10.0 mi

More ZIP Codes in Coles County

61920 standard
Charleston, IL
Pop: 25,594
61938 standard
Mattoon, IL
Pop: 22,409
61912 standard
Ashmore, IL
Pop: 1,344
62440 standard
Lerna, IL
Pop: 1,316

Related Areas

Coles County Humboldt, IL Illinois

Frequently Asked Questions

What county is ZIP code 61931 in? ▼
ZIP code 61931 (Humboldt) is located in Coles County, Illinois. Coles County contains multiple ZIP codes, see the full list at /counties/coles-il.
What is the population of ZIP code 61931? ▼
ZIP code 61931 in Humboldt, IL has a population of 1,255 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 61931? ▼
The median household income in ZIP 61931 is $74,125, which is 3% below the national average of $76,288.
What is the average home value in ZIP 61931? ▼
The median home value in ZIP 61931 is $135,000, which is 51% below the national average of $278,155.
What is the demographic makeup of ZIP 61931? ▼
The largest racial group in ZIP 61931 is White at 85.0%. Hispanic or Latino residents make up 14.4% of the population.
How many businesses are in ZIP code 61931? ▼
ZIP code 61931 has 16 business establishments employing approximately 46 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 61931? ▼
In ZIP code 61931, 53.6% of residents aged 25+ have a high school diploma or higher, and 17.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 61931? ▼
In ZIP code 61931, approximately 78.6% of occupied housing units are owner-occupied and 21.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 61931? ▼
The poverty rate in ZIP code 61931 is 7.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.