Franklin Grove ZIP Codes — Lee County, IL

There is one unique ZIP code in Franklin Grove, Illinois and it is 61031. Area code: 815.

ZIP codes

44.93

sq mi land

0.02

sq mi water

815

area code

Franklin Grove, IL ZIP code map

About Franklin Grove, IL

Franklin Grove, Illinois, is a quaint village situated within the picturesque landscapes of Lee County. Known for its charming small-town vibe and close-knit community, it offers residents and visitors a peaceful retreat. The village provides a glimpse into classic Midwestern life, characterized by friendly faces and local traditions.

Location & geography

Located in north-central Illinois, Franklin Grove covers an expansive land area of 44.93 square miles. It is surrounded by neighboring cities such as Rochelle, which lies approximately 15 miles to the east, Dixon about 12 miles to the southwest, and Amboy around 10 miles to the northwest. The terrain is predominantly land, with just 0.02 square miles classified as water, contributing to the village's rural character.

Community & economy

Franklin Grove boasts a strong sense of community, where local events and activities foster connections among residents. The economy relies on agricultural industries, local businesses, and a commitment to preserving its historical heritage. Daily life in Franklin Grove is marked by a slow pace, allowing residents to enjoy the benefits of small-town living while staying connected to larger urban areas.

Transportation

Key transportation routes include Illinois Route 38, which runs east-west through the village, providing access to surrounding areas. The nearest major airport is Chicago Rockford International Airport, located approximately 35 miles away, offering regional flights. The community is also accessible via local transit options that serve the area.

History

Franklin Grove was founded in the early 19th century and has roots in agriculture, which played a significant role in its early economic development. The village has maintained its historical charm, with several buildings and landmarks that reflect its rich past. Notable events include local festivals and community gatherings that celebrate the village’s heritage and culture.

Did you know?

One surprising fact about Franklin Grove is that it is home to the Franklin Grove Historical Society, which works to preserve and promote the village's history. Additionally, the village's serene setting makes it a hidden gem for nature lovers and outdoor enthusiasts.

ZIP codes for Franklin Grove, IL (1)

ZIP code	City	County	Map
61031	Franklin Grove	Lee	View map

Demographics & statistics

1,745

Population

42.7

Median age

$72,639

Median household income

$29,703

Per capita income

$126,500

Median home value

$817

Median monthly rent

69.2%

Home ownership

5.9%

Poverty rate

1.2%

Unemployment

461

Housing units

21.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

122

35–44

140

45–54

105

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	348	19.9%
18 and over	1,397	80.1%
65 and over	378	21.7%
Median age	42.7 years

Race & ethnicity

White 77.5%

Two or more races 11.3%

Hispanic or Latino 11.1%

Asian 0.1%

Other race 0.1%

Group	Count	%
White	1,520	77.5%
Two or more races	222	11.3%
Hispanic or Latino	217	11.1%
Asian	2	0.1%
Other race	1	0.1%

Household income

Under $10k 4.7%

$10k–$15k 1.5%

$15k–$25k 11.0%

$25k–$35k 11.6%

$35k–$50k 7.3%

$50k–$75k 16.8%

$75k–$100k 18.5%

$100k–$150k 18.5%

$150k–$200k 8.7%

$200k+ 1.5%

Range	% of households
Under $10k	4.7%
$10k–$15k	1.5%
$15k–$25k	11.0%
$25k–$35k	11.6%
$35k–$50k	7.3%
$50k–$75k	16.8%
$75k–$100k	18.5%
$100k–$150k	18.5%
$150k–$200k	8.7%
$200k+	1.5%
Median income	$72,639

Housing

Home values

Under $50k 2.8%

$50k–$100k 34.5%

$100k–$150k 21.7%

$150k–$200k 19.8%

$200k–$300k 8.9%

$300k–$500k 11.7%

$500k–$1M 0.7%

Housing overview

Metric	Value
Median home value	$126,500
Median rent / month	$817
Owner occupied	69.2%
Renter occupied	30.8%
Vacant	4.9%
Single-family detached	78.7%
Large apartment buildings	7.7%
Mobile homes	6.9%
Median rooms	6.0
Avg household size (owned)	2.75

Year built

Era	%
2020 or later	0.0%
2010–2019	1.7%
2000–2009	3.4%
1990–1999	12.3%
1980–1989	12.7%
1970–1979	11.0%
1960–1969	5.7%
1950–1959	7.5%
1940–1949	7.5%
1939 or earlier	38.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.9%
1 bedroom	7.2%
2 bedrooms	18.3%
3 bedrooms	50.3%
4 bedrooms	19.9%
5+ bedrooms	1.4%

Vehicles per household

Vehicles	% of households
No vehicle	6.8%
1 vehicle	27.1%
2 vehicles	38.9%
3 or more	27.3%

Heating fuel

Fuel type	%
Utility gas	59.4%
Electricity	23.2%
Propane / LP gas	17.4%

Households & families

Household type	Count	%
Married-couple family	271	43.7%
Cohabiting couple	44	7.1%
Male householder, no spouse	163	26.3%
Female householder, no spouse	142	22.9%
Households with children under 18	173	27.9%
Households with seniors (65+)	202	32.6%
Average household size	2.65

Marital status

Status	Male	Female
Never married	37.6%	33.9%
Married	44.9%	39.7%
Separated	5.3%	0.0%
Widowed	6.1%	17.1%
Divorced	6.0%	9.4%

Education

Less than 9th grade 1.0%

Some HS, no diploma 5.4%

HS graduate 41.6%

Some college, no degree 19.3%

Associate's degree 10.9%

Bachelor's degree 18.0%

Graduate / professional 3.9%

Metric	%
HS diploma or higher	93.6%
Bachelor's or higher	21.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	12	3.1%
Kindergarten	8	2.1%
Elementary school	216	55.4%
High school	66	16.9%
College / grad school	88	22.6%

Employment

Industry of employment

Manufacturing 23.9%

Education & healthcare 19.1%

Retail trade 13.4%

Arts, food & hospitality 7.2%

Construction 6.9%

Transportation & utilities 6.5%

Public administration 5.1%

Finance & real estate 4.4%

Professional & management 4.4%

Wholesale trade 3.1%

Other services 2.9%

Agriculture & mining 2.4%

Information 0.7%

Occupation

Category	%
Management, business & arts	28.3%
Service	9.8%
Sales & office	21.3%
Natural resources & construction	10.9%
Production & transportation	29.7%

Employment type

Type	%
Private sector	83.0%
Government	12.0%
Self-employed	5.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	83.0%
Carpool	4.9%
Public transit	0.0%
Walk	2.0%
Other means	4.4%
Avg commute (minutes)	31.7

Poverty

All people 5.9%

Under 18 years 4.3%

18 and over 6.4%

Married-couple families 8.1%

Female-led households 1.7%

Income support

Source	% of households
Social Security	39.5%
Retirement income	19.7%
Supplemental Security	4.4%
Cash public assistance	2.3%
Food stamps / SNAP	13.2%

Health indicators

Condition	%
High blood pressure	35.3%
High cholesterol	35.0%
Heart disease	7.7%
Stroke	3.5%
Asthma	9.4%
Arthritis	29.1%
Kidney disease	3.2%
Pulmonary disease	7.7%
Cancer	8.5%

Behavior / access	%
Binge drinking	14.2%
No physical activity	24.9%
Less than 7 hrs sleep	30.6%
Fair or poor health	14.3%
Poor mental health	12.1%
Poor physical health	10.2%
No health insurance	10.0%
Visited doctor (checkup)	78.0%
Visited dentist	67.4%
Cholesterol screening	90.8%
Teeth loss	14.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	122	8.7%

Disability	%
Any disability	16.2%
Under 18	0.9%
18–64 years	14.9%
65 and over	39.4%

Health insurance coverage

Type	%
Private insurance	75.5%
Public insurance	35.2%
Uninsured under 19	2.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,692	97.0%
Spanish	15	0.9%
Other Indo-European	13	0.8%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,709	97.9%
Born in same state	1,695	97.1%
Born in different state	1,383	79.3%
Foreign born	14	0.8%
Naturalized citizen	36	2.1%
Not a US citizen	32	88.9%

Ancestry

Ancestry	Count	%
Italian	277	15.9%
French	101	5.8%
Arab	59	3.4%
Polish	32	1.8%

Ancestry	Count	%
English	28	1.6%
German	16	0.9%
Dutch	3	0.2%

Technology access

Metric	% of households
Computer access	35.5%
Internet access	87.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Franklin Grove, IL have?

Franklin Grove, IL has one ZIP code: 61031. Each ZIP code serves a distinct delivery area within the city and surrounding region.