Sanilac County Population

1850–2026

39,928

2026 projection

1.4% since 2020 (decrease)

010K20K30K40K50K186018801900192019401960198020002020

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 Sanilac County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202639,928-1550.39%
202540,083-1550.39%
202440,238-1510.37%
202340,389-1170.29%
202240,506-300.07%
202140,536+370.09%
202040,499-7211.75%
201941,220-130.03%
201841,233-240.06%
201741,257-1810.44%

Showing 10 of 32 years.

Sanilac County Demographics

45.5median age

Median age

Female46.3 yrs
Male44.7 yrs

Adults

31,990
9,406 seniors (65+) · 29% of adults22,584 other adults

Sex

Female 49.6% · 20,059Male 50.4% · 20,403

Population by age

MaleFemale85+ years, male: 50585+ years, female: 50580–84 years, male: 48580–84 years, female: 70775–79 years, male: 71675–79 years, female: 82870–74 years, male: 1,36770–74 years, female: 1,35965–69 years, male: 1,44665–69 years, female: 1,48860–64 years, male: 1,93160–64 years, female: 1,49455–59 years, male: 1,27955–59 years, female: 1,59050–54 years, male: 1,25650–54 years, female: 1,23945–49 years, male: 1,14645–49 years, female: 1,09840–44 years, male: 1,21440–44 years, female: 1,07835–39 years, male: 1,03835–39 years, female: 1,09030–34 years, male: 1,06930–34 years, female: 1,02925–29 years, male: 1,08425–29 years, female: 1,00220–24 years, male: 1,07120–24 years, female: 1,05015–19 years, male: 1,28915–19 years, female: 1,20310–14 years, male: 1,21810–14 years, female: 1,1215–9 years, male: 1,2565–9 years, female: 1,2060–4 years, male: 1,0330–4 years, female: 97285+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

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 405 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

Sanilac County Income

$58,863median household income

Median household income

$58,863

Half of households earn more, half earn less

Median earnings

$41,876

Typical yearly pay for a worker 25 or older.

Poverty rate

15.3%

About 1 in 7 residents

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

Sanilac County Marital Status

54% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married54%54%54%
Never married26%29%22%
Divorced13%13%12%
Widowed7%4%10%
Separated<1%<1%<1%

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

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year