61531 ZIP Code — Farmington, IL
Fulton County, Illinois
ZIP code 61531 is located in Farmington, Illinois, within Fulton County. It covers approximately 56.33 square miles and serves a population of 3,144 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 309.
About ZIP code 61531
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $114,700. Owner-occupancy is high at 78%, well above the national average.
Median household income is $63,276. The poverty rate of 7% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 25 minutes is near the national average.
Educational attainment is near the national average, with 29% of residents holding a bachelor's degree or higher.
3,144
population
56.33
sq mi land
Standard
ZIP type
Central (CT)
timezone
61531 ZIP code map
Cities in ZIP code 61531
Below are the cities the US Postal Service accepts for ZIP code 61531. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Farmington | Acceptable |
| Farmington | Preferred |
Nearby ZIP codes
61569 Trivoli (6.8 mi)
61432 Fairview (7.4 mi)
61572 Yates City (7.5 mi)
61529 Elmwood (9.1 mi)
61520 Canton (9.4 mi)
61544 London Mills (11.5 mi)
61533 Glasford (11.6 mi)
61536 Hanna City (11.9 mi)
61458 Maquon (12.4 mi)
61517 Brimfield (12.6 mi)
61431 Ellisville (15 mi)
61427 Cuba (15.3 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 3,144 |
| Population density | 56 / sq mi |
| State FIPS | 17 |
| County FIPS | 057 |
| Geography | |
|---|---|
| Land area | 56.33 sq mi |
| Water area | 0.52 sq mi |
| Latitude | 40.6784 |
| Longitude | -90.0207 |
| Timezone | Central (CT) |
| Area code | 309 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 40.2% | 47.2% | 37.2% |
| $50k – $100k | 31.6% | 30.9% | 29.6% |
| $100k – $200k | 26.8% | 18.2% | 24.4% |
| Over $200k | 1.5% | 3.6% | 8.8% |
Demographics & statistics
3,144
Population
56
People per sq mi
38.9
Median age
$63,276
Median household income
$32,910
Per capita income
$114,700
Median home value
$921
Median monthly rent
78.1%
Home ownership
7.4%
Poverty rate
7.0%
Unemployment
1,142
Housing units
29.1%
Bachelor's or higher
Age distribution
Male
Female
113
Under 5
113
99
5–9
100
136
10–14
136
87
15–19
87
70
20–24
71
208
25–34
209
233
35–44
233
124
45–54
125
99
55–59
100
101
60–64
102
136
65–74
136
119
75–84
120
43
85+
44
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 829 | 26.4% |
| 18 and over | 2,315 | 73.6% |
| 65 and over | 598 | 19.0% |
| Median age | 38.9 years | |
Race & ethnicity
White
95.8%
Hispanic or Latino
1.4%
Other race
1.2%
Two or more races
1%
Black or African American
0.3%
American Indian / Alaska Native
0.3%
Asian
0.1%
| Group | Count | % |
|---|---|---|
| White | 3,053 | 95.8% |
| Hispanic or Latino | 44 | 1.4% |
| Other race | 39 | 1.2% |
| Two or more races | 31 | 1% |
| Black or African American | 9 | 0.3% |
| American Indian / Alaska Native | 9 | 0.3% |
| Asian | 3 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 40.2% | 47.2% | 37.2% |
| $50k – $100k | 31.6% | 30.9% | 29.6% |
| $100k – $200k | 26.8% | 18.2% | 24.4% |
| Over $200k | 1.5% | 3.6% | 8.8% |
Under $10k
5.7%
$10k–$15k
1.1%
$15k–$25k
6.4%
$25k–$35k
4.8%
$35k–$50k
14.9%
$50k–$75k
29.1%
$75k–$100k
10.8%
$100k–$150k
15.3%
$150k–$200k
9.8%
$200k+
2.2%
| Range | % of households |
|---|---|
| Under $10k | 5.7% |
| $10k–$15k | 1.1% |
| $15k–$25k | 6.4% |
| $25k–$35k | 4.8% |
| $35k–$50k | 14.9% |
| $50k–$75k | 29.1% |
| $75k–$100k | 10.8% |
| $100k–$150k | 15.3% |
| $150k–$200k | 9.8% |
| $200k+ | 2.2% |
| Median income | $63,276 |
Housing
Home values
Under $50k
11.5%
$50k–$100k
32.6%
$100k–$150k
16.0%
$150k–$200k
19.2%
$200k–$300k
10.6%
$300k–$500k
9.2%
$500k–$1M
0.9%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $114,700 |
| Median rent / month | $921 |
| Owner occupied | 78.1% |
| Renter occupied | 21.9% |
| Vacant | 8.7% |
| Single-family detached | 90.1% |
| Large apartment buildings | 0.9% |
| Mobile homes | 1.9% |
| Median rooms | 6.1 |
| Avg household size (owned) | 2.38 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 4.8% |
| 2000–2009 | 3.8% |
| 1990–1999 | 4.9% |
| 1980–1989 | 4.5% |
| 1970–1979 | 10.6% |
| 1960–1969 | 7.0% |
| 1950–1959 | 16.2% |
| 1940–1949 | 7.4% |
| 1939 or earlier | 40.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.1% |
| 1 bedroom | 6.8% |
| 2 bedrooms | 28.7% |
| 3 bedrooms | 41.7% |
| 4 bedrooms | 17.4% |
| 5+ bedrooms | 4.2% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.0% |
| 1 vehicle | 29.8% |
| 2 vehicles | 46.9% |
| 3 or more | 21.3% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 59.3% |
| Electricity | 17.2% |
| Propane / LP gas | 22.5% |
| Wood | 0.6% |
| No fuel used | 0.4% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 686 | 52.6% |
| Cohabiting couple | 58 | 4.4% |
| Male householder, no spouse | 244 | 18.7% |
| Female householder, no spouse | 316 | 24.2% |
| Households with children under 18 | 453 | 34.7% |
| Households with seniors (65+) | 393 | 30.1% |
| Average household size | 2.35 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 27.0% | 19.1% |
| Married | 58.1% | 55.7% |
| Separated | 0.0% | 1.1% |
| Widowed | 3.7% | 13.1% |
| Divorced | 11.1% | 10.9% |
Education
Less than 9th grade
1.0%
Some HS, no diploma
3.1%
HS graduate
34.8%
Some college, no degree
20.0%
Associate's degree
12.0%
Bachelor's degree
21.6%
Graduate / professional
7.5%
| Metric | % |
|---|---|
| HS diploma or higher | 95.9% |
| Bachelor's or higher | 29.1% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 40 | 5.5% |
| Kindergarten | 30 | 4.1% |
| Elementary school | 358 | 48.8% |
| High school | 209 | 28.5% |
| College / grad school | 96 | 13.1% |
Employment
Industry of employment
Education & healthcare
23.6%
Retail trade
16.7%
Manufacturing
15.9%
Arts, food & hospitality
7.8%
Transportation & utilities
7.2%
Wholesale trade
7.0%
Public administration
4.6%
Other services
4.3%
Professional & management
4.2%
Finance & real estate
2.7%
Construction
2.6%
Agriculture & mining
2.1%
Information
1.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 29.1% |
| Service | 17.1% |
| Sales & office | 23.1% |
| Natural resources & construction | 10.2% |
| Production & transportation | 20.5% |
Employment type
| Type | % |
|---|---|
| Private sector | 80.4% |
| Government | 14.6% |
| Self-employed | 4.2% |
| Unpaid family workers | 0.9% |
Commute
| Method | % |
|---|---|
| Drive alone | 89.8% |
| Carpool | 3.3% |
| Public transit | 0.0% |
| Walk | 4.1% |
| Work from home | 2.4% |
| Other means | 0.4% |
| Avg commute (minutes) | 24.6 |
Poverty
All people
7.4%
Under 18 years
3.3%
18 and over
8.9%
Married-couple families
6.6%
Female-led households
3.8%
Income support
| Source | % of households |
|---|---|
| Social Security | 27.1% |
| Retirement income | 28.6% |
| Supplemental Security | 1.5% |
| Cash public assistance | 3.0% |
| Food stamps / SNAP | 11.3% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 35.1% |
| High blood pressure | 34.9% |
| High cholesterol | 35.1% |
| Diabetes | 10.2% |
| Heart disease | 7.2% |
| Stroke | 3.3% |
| Asthma | 9.7% |
| Arthritis | 28.9% |
| Kidney disease | 3.1% |
| Pulmonary disease | 7.7% |
| Cancer | 7.7% |
| Behavior / access | % |
|---|---|
| Smoking | 17.9% |
| Binge drinking | 14.8% |
| No physical activity | 24.9% |
| Less than 7 hrs sleep | 32.0% |
| Depression | 17.7% |
| Fair or poor health | 14.4% |
| Poor mental health | 12.7% |
| Poor physical health | 10.2% |
| No health insurance | 9.8% |
| Visited doctor (checkup) | 77.2% |
| Visited dentist | 65.2% |
| Cholesterol screening | 90.2% |
| Teeth loss | 14.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 132 | 5.7% |
| Disability | % |
|---|---|
| Any disability | 12.5% |
| Under 18 | 2.5% |
| 18–64 years | 8.7% |
| 65 and over | 40.4% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 76.7% |
| Public insurance | 35.8% |
| No insurance | 3.7% |
| Uninsured under 19 | 2.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 2,918 | 92.8% |
| Spanish | 2 | 0.1% |
| Other Indo-European | 2 | 0.1% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 3,125 | 99.4% |
| Born in same state | 3,118 | 99.2% |
| Born in different state | 2,866 | 91.2% |
| Foreign born | 7 | 0.2% |
| Naturalized citizen | 19 | 0.6% |
| Not a US citizen | 8 | 42.1% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 487 | 15.5% |
| Italian | 411 | 13.1% |
| Arab | 309 | 9.8% |
| Ancestry | Count | % |
|---|---|---|
| English | 94 | 3% |
| Polish | 23 | 0.7% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 41.5% |
| Internet access | 91.5% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 61531
What city is ZIP code 61531 in?
ZIP code 61531 is primarily assigned to Farmington, Illinois.
What county is ZIP code 61531 in?
ZIP code 61531 falls within Fulton County, Illinois.
What is the typical home value in ZIP code 61531?
The median home value in ZIP code 61531 is $114,700.
What is the population of ZIP code 61531?
ZIP code 61531 has an estimated population of 3,144 residents, with a density of 56 people per square mile.
What is the median household income in ZIP code 61531?
The median household income in ZIP code 61531 is $63,276, below the national median of ~$75,000.
What timezone is ZIP code 61531 in?
ZIP code 61531 observes the CST timezone.