Hamilton County Population

1830–2026

7,857

2026 projection

1.7% since 2020 (decrease)

05K10K15K20K25K1850190019502000

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.
20267,857-20.03%
20257,859-20.03%
20247,861-340.43%
20237,895-861.08%
20227,981+670.85%
20217,914-821.03%
20207,996-1371.68%
20198,133-160.20%
20188,149-430.52%
20178,192-50.06%

Showing 10 of 34 years.

Hamilton County Demographics

43.9median age

Median age

Female44.9 yrs
Male42.5 yrs

Adults

6,185
1,816 seniors (65+) · 29% of adults4,369 other adults

Sex

Female 50.1% · 3,962Male 49.9% · 3,954

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 79 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

$65,746median household income

Median household income

$65,746

Half of households earn more, half earn less

Median earnings

$49,638

Typical yearly pay for a worker 25 or older.

Poverty rate

12.1%

About 1 in 8 residents

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

Hamilton County Marital Status

53% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married53%55%52%
Never married22%26%19%
Divorced15%14%15%
Widowed9%5%13%
Separated<1%<1%<1%

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