Ada Population

1880–2026

4,938

2026 projection

7.4% since 2020 (decrease)

01K2K3K4K5K6K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal 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 Ada. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20264,938-470.94%
20254,985-1583.07%
20245,143-1532.89%
20235,296+561.07%
20225,240+761.47%
20215,164-1703.19%
20205,334-120.22%
20195,346-410.76%
20185,387-741.36%
20175,461-80.15%

Showing 10 of 30 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Ada has a population change lower than Hardin County, Ohio, and the U.S.

  • United States+3.1%
  • Ohio+0.9%
  • Hardin County−2.1%
  • Ada−6.4%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Ada Demographics

22.2median age

Median age

Female22.2 yrs
Male22.3 yrs

Adults

4,289
390 seniors (65+) · 9% of adults3,899 other adults

Sex

Female 57.2% · 2,745Male 42.8% · 2,052

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 48 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

Ada Income

$61,649median household income

Median household income

$61,649

Half of households earn more, half earn less

Median earnings

$51,474

Typical yearly pay for a worker 25 or older.

Poverty rate

31.5%

About 1 in 3 residents

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

Ada Marital Status

19% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married19%21%18%
Never married72%72%73%
Divorced6%5%6%
Widowed2%1%3%
Separated<1%1%<1%

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