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Marshall County, IN
11 cities and towns and 9 ZIP codes in Marshall County, Indiana.
Population
46,284
Land area
444sq mi
People per sq mi
104
ZIP codes
9
Cities and towns in Marshall County
Marshall County at a glance
- Marshall County is 45% less dense than Indiana as a whole.
- The median household income is $71,808, close to the Indiana median.
- A typical owner-occupied home is valued at $204,900 (6% below Indiana) and median rent is $938 a month.
- The biggest population centers are Plymouth (10,664), Bremen (4,642) and Argos (1,802).
Local data for Marshall County, IN
Counts from official public data
Housing and community stats
Marshall County, IN, American Community Survey 2020-2024
Median household income
$71,808
Poverty rate
11.7%
Median home value
$204,900
Prices +8.2% in a year
Median rent
$938/mo
Homeownership
76.4%
Bachelor's or higher
20.9%
Median age
39.8
Average commute
22.3 min
Largest reported origins and ancestries: German Americans (10,707), Irish Americans (4,105), Mexican Americans (3,728).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.4%
Sep 2026, 0.0 pts in a year
Average annual pay
$54,156
19,640 jobs, 2025
Income per person
$55,404
BEA, 2024
Federal spending
$290M
FY 2026, $6,292 per person
PPP loans
$87.8M
1,223 loans, 10,527 jobs reported
Campaign donations
$126K
Itemized, 2026 cycle
How people get to work
Marshall County, IN, workers 16 and older. American Community Survey 5-year estimates
- Drove alone76.8%
- Carpooled10.1%
- Public transit0.1%
- Walked3.3%
- Bicycle2.3%
- Taxi, ride-hailing, motorcycle or other1.6%
- Worked from home5.8%
Average one-way commute: 22.3 minutes for people who do not work from home.
Environment and hazard risk
Marshall County, IN, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: lightning
Storm events since 1996
384
Most often thunderstorm wind
Flood insurance policies
46
0.2% of homes, county
July high / Jan low
84° / 17°F
40.3 inches of rain a year
Hazards, floods and storm historyCheck a flood zone18 historic places
Health statistics
Share of adults in Marshall County, IN, CDC PLACES estimates
Obesity
43.2%
U.S. 33.3% +9.9 pts
Diabetes
14.0%
U.S. 12.1% +1.9 pts
Smoking
17.4%
U.S. 12.8% +4.6 pts
Uninsured (18-64)
10.3%
U.S. 11.1% -0.8 pts
Cities, towns and ZIP codes in Marshall County
Population shown
Frequently asked questions
- What is the largest city in Marshall County, IN?
- Plymouth is the largest city or town in Marshall County, with about 10,664 residents.
- How many ZIP codes are in Marshall County?
- Marshall County includes 9 ZIP Code Tabulation Areas, including 46501, 46504, 46506, 46511, 46513.
- What is the population of Marshall County, IN?
- About 46,284 people live in Marshall County, based on American Community Survey 5-year estimates.
- What counties border Marshall County?
- Marshall County borders St. Joseph County, Elkhart County, Kosciusko County, Starke County, Fulton County, Pulaski County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023