Ontonagon County Population

1850–2026

5,780

2026 projection

0.3% since 2020 (decrease)

02K4K6K8K10K12K14K186018801900192019401960198020002020

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 Ontonagon County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20265,780-430.74%
20255,823-430.73%
20245,866-140.24%
20235,880-90.15%
20225,889+210.36%
20215,868+691.19%
20205,799+861.51%
20195,713-1031.77%
20185,816-721.22%
20175,888-470.79%

Showing 10 of 32 years.

Ontonagon County Demographics

59.8median age

Median age

Female60 yrs
Male59.4 yrs

Adults

5,181
2,236 seniors (65+) · 43% of adults2,945 other adults

Sex

Female 48.4% · 2,834Male 51.6% · 3,016

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 59 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

Ontonagon County Income

$54,398median household income

Median household income

$54,398

Half of households earn more, half earn less

Median earnings

$36,637

Typical yearly pay for a worker 25 or older.

Poverty rate

12.5%

About 1 in 8 residents

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

Ontonagon County Marital Status

58% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married58%56%60%
Never married20%24%17%
Divorced12%15%9%
Widowed9%4%13%
Separated<1%1%<1%

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