US ZIP Code
61436

Gilson, IL

Knox County  ·  Illinois

● Active
👥 810 Population ↑ 11% since 2019
💰 $74,688 Median HH Income
≈ Avg ↑ 6% since 2019
🎂 59.1 Median Age ↑ 28% since 2019
🏠 $186,500 Median Home Value
▼ 33% below avg ↑ 67% since 2019
🎓 48.1% College Grads
▲ 24% above avg
📊 0.0% Unemployment
▼ 100% below avg ↓ 100% since 2019
ZIP Code Details
ZIP Code61436
CityGilson
StateIllinois (IL)
CountyKnox County
Area Code309/861
Elevation688 ft
Latitude40.860149
Longitude-90.223178
TimezoneChicago (DST)
FIPS17095
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.5% (401) Female 50.5% (409) ♀

Race & Ethnicity

White: 98.5%Hispanic: 0.1%Race
White98.5%
Hispanic0.1%

Age Breakdown

Under 5
2%
5–17
12%
18–24
6%
25–44
14%
45–64
42%
65+
12%

Key Indicators

Median Age59.1 yrs ↑ 28% since 2019
Avg Household Size2.26
Below Poverty7.0% ▼ 30% below avg
College Grads48.1% ▲ 24% above avg
Unemployment0.0% ▼ 100% below avg
HS Graduate150 (24%)
Some College63 (10.1%)
Associates112 (17.9%)
Bachelors163 (26%)
Graduate Degree138 (22%)

Education

HS Grad: 24%Some College: 10.1%Associates: 17.9%Bachelors: 26%Graduate: 22%Edu
HS Grad24.0%
Some College10.1%
Associates17.9%
Bachelors26.0%
Graduate22.0%
Housing & Income

Housing Tenure

Owner: 86.4%Renter: 13.7%Tenure
Owner86.4%
Renter13.7%

Home Value Distribution

Under $50k
17%
$50k–100k
7%
$100k–150k
16%
$150k–200k
17%
$200k–300k
8%
$300k–500k
26%
Over $500k
8%

Financials

Median HH Income$74,688 ≈ Avg ↑ 6% since 2019
Median Home Value$186,500 ▼ 33% below avg ↑ 67% since 2019
Home/Income Ratio2.5x (nat avg ~3.5x)
Total Units428
Vacant Units69
Avg HH Size2.26

Income Distribution

Under $25k
13%
$25k–50k
21%
$50k–75k
16%
$75k–100k
23%
$100k–150k
14%
$150k–200k
8%
Over $200k
6%
Employment & Commute

How People Get to Work

Drove Alone
91%
Walked
1%
Work From Home
8%

Commute Time

Under 15 min
23%
15–30 min
39%
30–45 min
7%
Over 45 min
31%
Housing Stock

Year Built

Before 1940
11%
1940s–1950s
10%
1960s–1970s
18%
1980s–1990s
1%
2000+
60%

Summary

Total Units428
Vacant69
Owner Occupied86.4%
Renter Occupied13.7%
Avg HH Size2.26
Frequently Asked Questions
ZIP code 61436 is in Gilson, IL, in Knox County.
ZIP code 61436 is located in Illinois (IL).
ZIP code 61436 is in Knox County, IL.
ZIP 61436 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 61436 is 810 people (ACS 2023).
The median household income in ZIP code 61436 is $74,688 (ACS 2023).
The median home value in ZIP 61436 is $186,500 (ACS 2023).
About ZIP Code 61436

ZIP code 61436 is located in Gilson, Illinois, within Knox County. With a population of 810, this is a sparsely populated ZIP code with an older community — the median age is 59.1 years. Economically, 61436 is a solidly middle-class ZIP code: the median household income of $74,688 is near the national average.

Real estate in ZIP code 61436 represents an affordable housing market. The median home value of $186,500 is below the national average. Homeownership is strong here — 86.4% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 67% since 2019.

The population of 61436 is primarily White (98.52%). Residents are well-educated — 48.1% hold a bachelor's degree or higher, which is above the national average. Poverty affects a relatively small share of residents at 7.0%. Household income has grown by 6% since 2019.

As in most parts of the country, driving alone is the dominant commute mode at 91%.

Overall, ZIP code 61436 in Gilson, IL is characterized as solidly middle-class, well-educated, an older community, and predominantly owner-occupied. With 810 residents, a median household income of $74,688, and a median home value of $186,500, it offers a clear picture of life in this part of Illinois.