Marquette County, Michigan Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 30th-largest in Michigan
The population of Marquette County, Michigan is 66,430 as of the 2023 American Community Survey, making it the 30th-largest county in Michigan. The median household income is $64,675, the median home value is $202,000, and the median age is 39.2.
The population of Marquette County has grown 1.3% since 2010 (67,080 → 67,979), a +0.10% annualized rate.
66,430
Population
+0.10%
Annual growth
37
People / sq mi
$64,675
Median Income
$202,000
Median Home Value
Marquette County covers 1,809 sq mi of land at 36.7 people per square mile.
About Marquette County, MI
Marquette County is defined demographically by education — 35.8% of adults hold a bachelor’s degree, near the national average. Marquette County is a county in Michigan with a population of 66,430. It ranks #30 among counties in Michigan by population.
The typical household here earns about $64,675, below the US median of $78,538. Poverty runs at 7.1%, below the national 12.4%. The typical home is valued at $202,000, with typical rent around $923.
About 35.8% of adults 25 and older have a bachelor’s degree, near the 35.0% national figure. Around 6.7% of workers work from home, below the national 14.0%, and the average commute runs about 19 minutes each way.
The education numbers are the throughline: a college-heavy population in Marquette County usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Marquette County Population History (2010-2024)
The county of Marquette County had a population of 67,080 in 2010 and 67,979 in 2024, a 1.3% growth over 14 years. The peak was 67,979 in 2024. Average annual growth rate: 0.10%.
67,979
Population (2024)
67,080
Population (2010)
67,979
Peak (2024)
0.10%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 67,080 |
| 2011 | 67,462 |
| 2012 | 67,840 |
| 2013 | 67,792 |
| 2014 | 67,798 |
| 2015 | 67,357 |
| 2016 | 66,563 |
| 2017 | 66,524 |
| 2018 | 66,406 |
| 2019 | 66,689 |
| 2020 | 66,544 |
| 2021 | 66,278 |
| 2022 | 67,103 |
| 2023 | 67,654 |
| 2024 | 67,979 |
Race & Ethnicity
| White | 91.5% |
| Black or African American | 1.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.2% |
| Two or More Races | 0.0% |
Age & Sex
39.2
Median Age
49.3%
Female
50.7%
Male
20.0%
Age 65+
Age Distribution
Children (under 15): 14.8% · Seniors (65+): 20.0%
Income & Poverty
| Median household income | $64,675$-6,474 vs state |
| Mean household income | $80,432 |
| Per-capita income | $34,471 |
| Poverty rate | 7.1%-1.7% vs state |
| Unemployment rate | 2.9% |
| Employment-to-population | 55.8% |
Top Industries by Employment
The largest employment sector in Marquette County is professional & business services, accounting for 28.7% of workers.
How residents commute
0.4%
Drive alone
5.0%
Carpool
76.5%
Public transit
6.7%
Work from home
18.6 min
Avg commute
Housing
$202,000$-15,600 vs state
Median home value
$923
Median rent
71.2%
Homeownership rate
33,553
Total housing units
83.1%
Occupied
16.9%
Vacant
28.8%
Renter-occupied
Social & access
96.3%
With health insurance
93.8%
With broadband internet
20.9%
Foreign-born
8.9%
Veterans (18+)
15.3%
With a disability
97.5%
Speak language other than English at home
Education
95.5%
High School+
35.8%
Bachelor's+
Largest cities in Michigan
Other counties in Michigan
Part of Michigan
Metro areas in Michigan
County rankings
Frequently Asked Questions
Marquette County, Michigan has a population of 66,430 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 30th-largest county in Michigan. Population density is 37 people per square mile.
The population of Marquette County has grown 1.3% since 2010 (67,080 → 67,979), a +0.10% annualized rate.
The median household income in Marquette County, Michigan is $64,675, with mean (average) household income of $80,432 and per-capita income of $34,471. 7.1% of residents live below the federal poverty level.
In Marquette County, the largest racial and ethnic groups are White (91.5%), Hispanic or Latino (3.2%), Black or African American (1.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Marquette County, Michigan is 39.2 years. Residents are 49.3% female and 50.7% male.
The median home value in Marquette County is $202,000 and median monthly rent is $923. 71.2% of occupied housing units are owner-occupied. The county has 33,553 total housing units, 16.9% of which are vacant.
The largest employment sector in Marquette County, Michigan is professional, scientific, and management services, employing 28.7% of workers. The unemployment rate is 2.9%.
Detroit is among the largest cities associated with Marquette County, Michigan, with a population of 636,644.
Marquette County, MI Climate
Marquette County, MI has an average annual temperature of 4.4°C (40°F) and receives about 829 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
4.4°C
Avg Temp
829
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -9° / 15° | 58 mm |
| February | -9° / 17° | 40 mm |
| March | -4° / 26° | 62 mm |
| April | 3° / 37° | 60 mm |
| May | 10° / 50° | 73 mm |
| June | 15° / 59° | 74 mm |
| July | 18° / 64° | 76 mm |
| August | 17° / 63° | 83 mm |
| September | 13° / 55° | 96 mm |
| October | 7° / 44° | 83 mm |
| November | -1° / 31° | 69 mm |
| December | -7° / 20° | 55 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Marquette County, MI
The most comfortable months to visit Marquette County, MI are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 24°C high). The coldest is January (near -14°C low). September is usually the wettest month.
Where to stay near Marquette County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.