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 Moderate-density area
- $74,125
- Median income Near-median income area
- $135,000
- Median home value Below-median home value
- 17.0%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
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
- 21st 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 average Illinois ZIP), while per-capita income is $32,710. The poverty rate is 7.4%, with unemployment at 8.3%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $135,000 (30% below the average Illinois ZIP), and median rent is $851; owner occupancy is 78.6%.
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 -. The page also surfaces 3 ZIP codes within roughly 10 miles and 4 more in Coles County, so 61931 can be compared with both its immediate and county-level context.
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
Who lives in ZIP 61931?
38.8
Median Age
49.6%
Male
50.4%
Female
5.9%
Foreign-Born
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 ZIP avg
$32,710
Per Capita Income
7.4%
Poverty Rate
8.3%
Unemployment Rate
How ZIP 61931 ranks among Illinois ZIPs
Humboldt, IL household income vs. every Illinois ZIP code
Median household income among 1,334 reporting Illinois ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$74,125 48th percentile higher than 48% of 1,334 Illinois ZIPs
Each bar is a $20K-wide band; taller bars hold more Illinois 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
513housing units
513
Total Housing Units
501
Occupied Units
12
Vacant Units
2.69
Avg Household Size
Occupancy Type
$135,000
Median Home Value
-30% vs state ZIP avg
$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.
- 61938
Mattoon (61938)
22,409 residents
- 61911 4,860
Arthur (61911)
4,860 residents
- 61910 4,463
Arcola (61910)
4,463 residents
- 61931 1,255
Humboldt (61931)
1,255 residents
What this shows Among its immediate neighbors, ZIP 61931 ranks #4 by population - useful context the national average alone can't give.
ZIP 61931 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 61910
Arcola (61910)
$88,538 median income
- 61911
Arthur (61911)
$82,633 median income
- 61931
Humboldt (61931)
$74,125 median income
- 61938
Mattoon (61938)
$57,503 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.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 61931, both outside IL so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,255 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Coles County
Related Areas
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.
Related
Take this with you
What to do with ZIP 61931's numbers, next.
- See how ZIP 61931 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Humboldt, IL ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.