US ZIP Code
61259

Illinois City, IL

Rock Island County  ·  Illinois

● Active
👥 1,107 Population ↓ 4% since 2019
💰 $88,550 Median HH Income
▲ 16% above avg ↑ 10% since 2019
🎂 55.5 Median Age ↑ 20% since 2019
🏠 $198,900 Median Home Value
▼ 29% below avg ↑ 8% since 2019
🎓 36.3% College Grads
≈ Avg
📊 4.2% Unemployment
▼ 14% below avg ↑ 33% since 2019
ZIP Code Details
ZIP Code61259
CityIllinois City
StateIllinois (IL)
CountyRock Island County
Area Code309/861
Elevation737 ft
Latitude41.385591
Longitude-90.924481
TimezoneChicago (DST)
FIPS17161
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 51.1% (566) Female 48.9% (541) ♀

Race & Ethnicity

White: 100%Race
White100.0%

Age Breakdown

Under 5
9%
5–17
2%
18–24
6%
25–44
11%
45–64
48%
65+
10%

Key Indicators

Median Age55.5 yrs ↑ 20% since 2019
Avg Household Size2.19
Below Poverty4.1% ▼ 59% below avg
College Grads36.3% ≈ Avg
Unemployment4.2% ▼ 14% below avg
HS Graduate279 (33.3%)
Some College66 (7.9%)
Associates188 (22.5%)
Bachelors145 (17.3%)
Graduate Degree159 (19%)

Education

HS Grad: 33.3%Some College: 7.9%Associates: 22.5%Bachelors: 17.3%Graduate: 19%Edu
HS Grad33.3%
Some College7.9%
Associates22.5%
Bachelors17.3%
Graduate19.0%
Housing & Income

Housing Tenure

Owner: 96.4%Renter: 3.6%Tenure
Owner96.4%
Renter3.6%

Home Value Distribution

Under $50k
2%
$50k–100k
2%
$100k–150k
13%
$150k–200k
37%
$200k–300k
27%
$300k–500k
15%
Over $500k
4%

Financials

Median HH Income$88,550 ▲ 16% above avg ↑ 10% since 2019
Median Home Value$198,900 ▼ 29% below avg ↑ 8% since 2019
Home/Income Ratio2.2x (nat avg ~3.5x)
Total Units573
Vacant Units68
Avg HH Size2.19

Income Distribution

Under $25k
4%
$25k–50k
14%
$50k–75k
20%
$75k–100k
23%
$100k–150k
25%
$150k–200k
13%
Over $200k
1%
Employment & Commute

How People Get to Work

Drove Alone
98%
Work From Home
2%

Commute Time

Under 15 min
17%
15–30 min
32%
30–45 min
23%
Over 45 min
28%
Housing Stock

Year Built

Before 1940
15%
1940s–1950s
5%
1960s–1970s
10%
1980s–1990s
12%
2000+
58%

Summary

Total Units573
Vacant68
Owner Occupied96.4%
Renter Occupied3.6%
Avg HH Size2.19
Frequently Asked Questions
ZIP code 61259 is in Illinois City, IL, in Rock Island County.
ZIP code 61259 is located in Illinois (IL).
ZIP code 61259 is in Rock Island County, IL.
ZIP 61259 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 61259 is 1,107 people (ACS 2023).
The median household income in ZIP code 61259 is $88,550 (ACS 2023).
The median home value in ZIP 61259 is $198,900 (ACS 2023).
About ZIP Code 61259

ZIP code 61259 is located in Illinois City, Illinois, within Rock Island County. With a population of 1,107, this is a sparsely populated ZIP code with an older community — the median age is 55.5 years. Economically, 61259 is a middle-income ZIP code: the median household income of $88,550 is above the national average.

Real estate in ZIP code 61259 represents an affordable housing market. The median home value of $198,900 is below the national average. Homeownership is strong here — 96.4% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 8% since 2019.

The population of 61259 is primarily White (100.00%). Residents are moderately educated — 36.3% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 4.1%. Household income has grown by 10% since 2019.

The unemployment rate in 61259 stands at 4.2%, which is near the national average. As in most parts of the country, driving alone is the dominant commute mode at 98%.

Overall, ZIP code 61259 in Illinois City, IL is characterized as middle-income, moderately educated, an older community, and predominantly owner-occupied. With 1,107 residents, a median household income of $88,550, and a median home value of $198,900, it offers a clear picture of life in this part of Illinois.