City

Monmouth, IL

1 ZIP code  ·  Warren County  ·  Illinois

👥10,640Population
💰$62,190Median HH Income▼ 19% below avg
🎂37.3Median Age
🏠$100,900Median Home Value▼ 64% below avg
🎓33.0%College Grads▼ 15% below avg
📊6.1%Unemployment▲ 24% above avg
People & Population (ACS 2023 — weighted avg)
♂ Male 48.6% Female 51.4% ♀

Race & Ethnicity

White: 73.9%Hispanic: 16%Black: 3.9%Asian: 3.5%Other: 2.3%Race
White73.9%
Hispanic16.0%
Black3.9%
Asian3.5%
Other2.3%

Age Breakdown

Under 5
5%
5–17
17%
18–24
14%
25–44
19%
45–64
24%
65+
9%

Key Indicators

Median Age37.3 yrs
Avg HH Size2.32
Below Poverty13.3% ▲ 33% above avg
College Grads33.0% ▼ 15% below avg
Unemployment6.1% ▲ 24% above avg
No HS Diploma204 (3.5%)
HS Graduate2,049 (35.2%)
Some College986 (16.9%)
Associates665 (11.4%)
Bachelors613 (10.5%)
Graduate Degree1,312 (22.5%)

Education

No HS: 3.5%HS Grad: 35.2%Some College: 16.9%Associates: 11.4%Bachelors: 10.5%Graduate: 22.5%Edu
No HS3.5%
HS Grad35.2%
Some College16.9%
Associates11.4%
Bachelors10.5%
Graduate22.5%
Housing & Income

Housing Tenure

Owner: 76.6%Renter: 23.5%Tenure
Owner76.6%
Renter23.5%

Home Value Distribution

Under $50k
11%
$50k–$100k
38%
$100k–$150k
20%
$150k–$200k
13%
$200k–$300k
11%
$300k–$500k
6%
Over $500k
0%

Financials

Median HH Income$62,190 ▼ 19% below avg
Median Home Value$100,900 ▼ 64% below avg
Home/Income Ratio1.6x (nat avg ~3.5x)
Median Rent$657/mo
Total Housing Units4,800
Vacant Units616

Income Distribution

Under $25k
14%
$25k–$50k
19%
$50k–$75k
22%
$75k–$100k
18%
$100k–$150k
16%
$150k–$200k
5%
Over $200k
5%
Employment & Commute

How People Get to Work

Drove Alone
87%
Public Transit
1%
Walked
6%
Work From Home
6%

Commute Time

Under 15 min
63%
15–30 min
24%
30–45 min
6%
Over 45 min
8%
Housing Stock

Year Built

Before 1940
3%
1940s–1950s
20%
1960s–1970s
9%
1980s–1990s
6%
2000+
63%
About Monmouth, IL

Monmouth is a city in Illinois, located in Warren County. The city spans 1 ZIP code and is home to approximately 10,640 residents. It is a relatively young city, with a median age of 37.3 years.

Economically, Monmouth is a solidly middle-class community. The median household income of $62,190 is below the national average. Approximately 13.3% of residents live below the poverty line. The unemployment rate is 6.1%, above the national average.

The real estate market in Monmouth is one of the more affordable housing markets in the country. Median home values stand at $100,900, which is well below the national average. Renters typically pay around $657 per month. Homeownership is high at 76.6%, typical of suburban and family-oriented communities.

The population of Monmouth is moderately educated. 33.0% of adults hold a bachelor's degree or higher — near the national average. The community is primarily White (73.94%).

Monmouth, IL offers residents a cost-conscious lifestyle within Illinois.

ZIP Codes in Monmouth
ZIPPopulationMedian IncomeMedian HomeMedian RentUnemp.CollegeOwner Occ.
61462 10,640 $62,190 $100,900 $657 6.1% 33.0% 76.6%