Farmington ZIP Codes — Fulton County, IL

There is one unique ZIP code in Farmington, Illinois and it is 61531. Area code: 309.

ZIP codes

56.33

sq mi land

0.52

sq mi water

309

area code

Farmington, IL ZIP code map

About Farmington, IL

Farmington, Illinois, is a small city located within Fulton County, positioned in the central part of the state. Known for its welcoming community, Farmington offers a blend of rural charm and small-town amenities. The city presents a unique lifestyle for both its residents and visitors, showcasing the essence of life in Illinois.

Location & geography

Farmington is located approximately 30 miles northwest of Peoria and about 50 miles from the larger city of Galesburg. The city spans a total area of 56.33 square miles, with 0.52 square miles designated as water. The terrain is predominantly flat, characteristic of the central Illinois landscape, providing ample opportunity for outdoor activities and agriculture.

Community & economy

The community of Farmington is characterized by its friendly atmosphere and strong local ties, making it an ideal place for families to settle. The local economy is supported by agriculture, retail, and service industries, fostering a dynamic environment for businesses and employment. Daily life in Farmington is accentuated by community events, local festivals, and a focus on family-oriented activities.

Transportation

Farmington is conveniently accessed via Illinois Route 78, which connects to larger highways leading to nearby cities. The nearest major airport is General Wayne A. Downing Peoria International Airport, located about 30 miles away in Peoria. Public transportation options are limited, but local access to highways facilitates vehicular travel.

History

Farmington was established in the mid-19th century, with its founding rooted in the agricultural development of the region. The city has historically been centered around farming, with various agricultural products contributing to the local economy over the years. Notable events include the local fairs and festivals that celebrate the city’s agricultural heritage and community pride.

Did you know?

One surprising fact about Farmington is its commitment to preserving local history, showcased by the presence of the Farmington Historical Society. Additionally, the city has a strong tradition of local festivals, including seasonal celebrations that draw visitors from the surrounding areas.

ZIP codes for Farmington, IL (1)

ZIP code	City	County	Map
61531	Farmington	Fulton	View map

Demographics & statistics

3,144

Population

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

5–9

100

136

10–14

136

15–19

20–24

208

25–34

209

233

35–44

233

124

45–54

125

55–59

100

101

60–64

102

136

65–74

136

119

75–84

120

85+

← 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

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%
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	%
High blood pressure	34.9%
High cholesterol	35.1%
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	%
Binge drinking	14.8%
No physical activity	24.9%
Less than 7 hrs sleep	32.0%
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%
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

What ZIP codes does Farmington, IL have?

Farmington, IL has one ZIP code: 61531. Each ZIP code serves a distinct delivery area within the city and surrounding region.