ZIP code 61031: Franklin Grove, IL
61031 is a ZIP code in Franklin Grove, Illinois, mainly in Lee County, part of the Dixon, IL micro area. About 1,492 people live here.
- Population
- 1,492
- Median household income
- $75,446
- Typical home value
- $197,600+13% in 12 months
- Median rent
- $823gross, per month
- Median age
- 49.9
- Homeowners
- 77.4%of occupied homes
Shaded: ZIP code 61031's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 61031 details
| City | Franklin Grove |
|---|---|
| State | Illinois |
| County | Lee County (also partly Ogle County) |
| Metro area | Dixon, IL |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 44.9 sq mi, plus 0 sq mi of water |
| Population density | 33 people per sq mi |
| Bachelor's degree or higher | 28.2% of adults 25+ |
| Average commute | 30.8 minutes |
| Center coordinates | 41.82996, -89.32127 |
Median rent in 61031 by bedrooms
| Size | Median gross rent |
|---|---|
| 1 bedroom | $741/mo |
| 2 bedrooms | $842/mo |
| 3 bedrooms | $1,125/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 61031
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 61057 | Nachusa, IL | 3.2 mi | 30 |
| 61331 | Lee Center, IL | 6.1 mi | 0 |
| 61324 | Eldena, IL | 6.3 mi | 97 |
| 61006 | Ashton, IL | 6.5 mi | 1,541 |
| 61021 | Dixon, IL | 8.0 mi | 22,308 |
| 61310 | Amboy, IL | 9.0 mi | 3,347 |
| 61378 | West Brooklyn, IL | 11.3 mi | 513 |
| 61061 | Oregon, IL | 11.7 mi | 6,766 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 61031?
A typical home in ZIP code 61031 is worth about $197,600 (Zillow Home Value Index). The median household here earns $75,446 a year. See what buying here would cost per month, with Illinois average taxes and insurance filled in.
Monthly payment for a $197,600 homeWhat can a $75,446 income afford?Rental property numbers
About ZIP code 61031
What city is ZIP code 61031?
ZIP code 61031 is in Franklin Grove, IL, in Lee County.
What county is ZIP code 61031 in?
61031 is mainly in Lee County, Illinois, and partly in Ogle County.
What is the population of ZIP code 61031?
About 1,492 people live in ZIP code 61031, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 61031 in?
61031 is in Central Time (UTC−6). It observes daylight saving time.