ZIP code 61436: Gilson, IL
61436 is a ZIP code in Gilson, Illinois, mainly in Knox County, part of the Galesburg, IL micro area. About 745 people live here.
- Population
- 745
- Median household income
- $76,000
- Typical home value
- $205,000ACS median value
- Median rent
- —gross, per month
- Median age
- 59.5
- Homeowners
- 87%of occupied homes
Shaded: ZIP code 61436's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 61436 details
| City | Gilson |
|---|---|
| State | Illinois |
| County | Knox County |
| Metro area | Galesburg, IL |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 61.2 sq mi, plus 0 sq mi of water |
| Population density | 12 people per sq mi |
| Bachelor's degree or higher | 19.5% of adults 25+ |
| Average commute | 33.4 minutes |
| Center coordinates | 40.86015, -90.22318 |
ZIP codes near 61436
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 61448 | Knoxville, IL | 5.2 mi | 3,947 |
| 61458 | Maquon, IL | 5.8 mi | 656 |
| 61430 | East Galesburg, IL | 7.4 mi | 713 |
| 61428 | Dahinda, IL | 7.6 mi | 1,278 |
| 61401 | Galesburg, IL | 10.4 mi | 30,580 |
| 61572 | Yates City, IL | 10.5 mi | 732 |
| 61544 | London Mills, IL | 11.0 mi | 784 |
| 61402 | Galesburg, IL | 11.0 mi | 1,623 |
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 61436?
A typical home in ZIP code 61436 is worth about $205,000 (ACS median value). The median household here earns $76,000 a year. See what buying here would cost per month, with Illinois average taxes and insurance filled in.
Monthly payment for a $205,000 homeWhat can a $76,000 income afford?Rental property numbers
About ZIP code 61436
What city is ZIP code 61436?
ZIP code 61436 is in Gilson, IL, in Knox County.
What county is ZIP code 61436 in?
61436 is mainly in Knox County, Illinois.
What is the population of ZIP code 61436?
About 745 people live in ZIP code 61436, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 61436 in?
61436 is in Central Time (UTC−6). It observes daylight saving time.