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Mason County, IL
10 cities and towns and 7 ZIP codes in Mason County, Illinois.
Population
12,745
Land area
539sq mi
People per sq mi
24
ZIP codes
7
Cities and towns in Mason County
Mason County at a glance
- Mason County is 90% less dense than Illinois as a whole.
- The median household income is $62,845, 25% below the Illinois median of $83,390.
- A typical owner-occupied home is valued at $103,400 (61% below Illinois) and median rent is $802 a month.
- Its largest cities are Havana (2,989), Mason City (2,159) and Manito (1,692).
Local data for Mason County, IL
Counts from official public data
Housing and community stats
Mason County, IL, American Community Survey 2020-2024
Median household income
$62,845
Poverty rate
14.8%
Median home value
$103,400
Prices -0.1% in a year
Median rent
$802/mo
Homeownership
81.8%
Bachelor's or higher
17.1%
Median age
45.4
Average commute
30.4 min
Largest reported origins and ancestries: German Americans (3,544), Irish Americans (1,557), Polish Americans (332).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.7%
Aug 2026, -1.1 pts in a year
Average annual pay
$43,851
2,829 jobs, 2025
Income per person
$57,582
BEA, 2024
Federal spending
$99.37M
FY 2026, $7,593 per person
PPP loans
$9.49M
412 loans, 981 jobs reported
Campaign donations
$9,878
Itemized, 2026 cycle
How people get to work
Mason County, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone82.8%
- Carpooled4.5%
- Public transit0.3%
- Walked2.2%
- Bicycle0.1%
- Taxi, ride-hailing, motorcycle or other1.8%
- Worked from home8.2%
Average one-way commute: 30.4 minutes for people who do not work from home.
Environment and hazard risk
Mason County, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: drought
Storm events since 1996
323
Most often thunderstorm wind
Flood insurance policies
42
0.6% of homes, county
July high / Jan low
88° / 16°F
41.0 inches of rain a year
Hazards, floods and storm historyCheck a flood zone2 historic places
Health statistics
Share of adults in Mason County, IL, CDC PLACES estimates
Obesity
37.3%
U.S. 33.3% +4.0 pts
Diabetes
13.3%
U.S. 12.1% +1.2 pts
Smoking
16.0%
U.S. 12.8% +3.2 pts
Uninsured (18-64)
7.7%
U.S. 11.1% -3.4 pts
Cities, towns and ZIP codes in Mason County
Population shown
Frequently asked questions
- What is the largest city in Mason County, IL?
- Havana is the largest city or town in Mason County, with about 2,989 residents.
- How many ZIP codes are in Mason County?
- Mason County includes 7 ZIP Code Tabulation Areas, including 61532, 61567, 62617, 62633, 62655.
- What is the population of Mason County, IL?
- About 12,745 people live in Mason County, based on American Community Survey 5-year estimates.
- What counties border Mason County?
- Mason County borders Tazewell County, Fulton County, Logan County, Cass County, Menard County, Schuyler County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023