Marquette County Population

1840–2026

16,016

2026 projection

2.7% since 2020 (increase)

05K10K15K20K1840186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Marquette County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202616,016+890.56%
202515,927+890.56%
202415,838-700.44%
202315,908+1110.70%
202215,797+140.09%
202115,783+1891.21%
202015,594+570.37%
201915,537+1440.94%
201815,393+1230.81%
201715,270+1551.03%

Showing 10 of 33 years.

Marquette County Demographics

50.7median age

Median age

Female51.3 yrs
Male49.9 yrs

Adults

12,786
4,183 seniors (65+) · 33% of adults8,603 other adults

Sex

Female 48.1% · 7,574Male 51.9% · 8,172

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 157 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Marquette County Income

$65,681median household income

Median household income

$65,681

Half of households earn more, half earn less

Median earnings

$44,502

Typical yearly pay for a worker 25 or older.

Poverty rate

13.1%

About 1 in 8 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Marquette County Marital Status

55% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married55%54%57%
Never married23%27%18%
Divorced12%13%11%
Widowed9%6%13%
Separated<1%<1%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201