Hamilton County Population

1820–2026

4,929

2026 projection

2.8% since 2020 (decrease)

01K2K3K4K5K6K1850190019502000

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 Hamilton County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20264,929-771.54%
20255,006-771.51%
20245,083+150.30%
20235,068-340.67%
20225,102-70.14%
20215,109+360.71%
20205,073+63514.31%
20194,438-150.34%
20184,453-240.54%
20174,477-811.78%

Showing 10 of 35 years.

Hamilton County Demographics

58.1median age

Median age

Female57.7 yrs
Male58.3 yrs

Adults

4,474
1,718 seniors (65+) · 38% of adults2,756 other adults

Sex

Female 50% · 2,542Male 50% · 2,547

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 51 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

Hamilton County Income

$68,835median household income

Median household income

$68,835

Half of households earn more, half earn less

Median earnings

$46,943

Typical yearly pay for a worker 25 or older.

Poverty rate

10.6%

About 1 in 9 residents

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

Hamilton County Marital Status

62% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married62%64%60%
Never married21%25%18%
Divorced9%7%11%
Widowed5%2%8%
Separated3%3%3%

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