Kansas Gazetteer
Also See Oskaloosa, KS: ZIP Codes & Maps
The City of Oskaloosa had a population of 1,079 as of July 1, 2025.
The primary coordinate point for Oskaloosa is located at latitude 39.2153 and longitude -95.3128 in Jefferson County. The formal boundaries for the City of Oskaloosa encompass a land area of 1.02 sq. miles and a water area of 0 sq. miles. Jefferson County is in the Central time zone (GMT -6).
The City of Oskaloosa has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
The City of Oskaloosa is located within Township of Oskaloosa, a minor civil division (MCD) of Jefferson County.
POPULATION | |
|---|---|
| Total Population | 1,079 (100%) |
| Population in Households | 1,002 (92.9%) |
| Population in Families | 797 (73.9%) |
| Population in Group Quarters1 | 77 ( 7.1%) |
| Population Density | 1,086 |
| Diversity Index2 | 18 |
INCOME | |
| Median Household Income | $98,061 |
| Average Household Income | $104,650 |
| % of Income for Mortgage4 | 14% |
| Per Capita Income | $40,191 |
| Wealth Index5 | 80 |
| Socioeconomic Status Index6 | Moderate (55.8) |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 465 (100%) |
| Owner Occupied HU | 322 (69.2%) |
| Renter Occupied HU | 89 (19.1%) |
| Vacant Housing Units | 54 (11.6%) |
| Median Home Value | $223,469 |
| Average Home Value | $271,801 |
| Housing Affordability Index3 | 148 |
HOUSEHOLDS | |
| Total Households | 411 |
| Average Household Size | 2.44 |
| Family Households | 259 |
| Average Family Size | 3.00 |
GROWTH RATE / YEAR |
2020-2025 | 2025-2030 |
|---|---|---|
| Population | -0.54% | -0.04% |
| Households | 0.00% | 0.00% |
| Families | 1.50% | |
| Median Household Income | 0.46% | |
| Per Capita Income | 1.39% | |
| Owner Occupied HU | -0.38% |
The table below compares Oskaloosa to the other 740 incorporated cities, towns and CDPs in Kansas by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 183 | 75th |
| Population Density | # 190 | 74th |
| Median Household Income | # 59 | 92nd |
| Housing Affordability Index | # 546 | 74th |
| Per Capita Income | # 193 | 74th |
| Diversity Index | # 537 | 27th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Kansas Census Data Comparison Tool.
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