Oskaloosa Population

1850–2026

11,482

2026 projection

0.5% since 2020 (decrease)

02K4K6K8K10K12K186018801900192019401960198020002020

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 Oskaloosa. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202611,482-110.10%
202511,493-90.08%
202411,502-200.17%
202311,522+410.36%
202211,481+40.03%
202111,477-670.58%
202011,544-2672.26%
201911,811+1901.63%
201811,621-1211.03%
201711,742+1181.02%

Showing 10 of 33 years.

Oskaloosa Demographics

37.6median age

Median age

Female39.2 yrs
Male35.8 yrs

Adults

8,983
2,347 seniors · 26%6,636 other adults

Sex

Female 50.5% · 5,811Male 49.5% · 5,693

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 115 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

Oskaloosa Income

$64,004median household income

Median household income

$64,004

Half of households earn more, half earn less

Median earnings

$43,605

Typical yearly pay for a worker 25 or older.

Poverty rate

16.6%

About 1 in 6 residents

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

Oskaloosa Marital Status

46% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married46%48%44%
Never married35%38%32%
Divorced11%11%11%
Widowed7%2%11%
Separated1%<1%2%

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