Ottawa, Kansas Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Ottawa, Kansas is 12,632 as of the 2023 American Community Survey, making it the 29th-largest city in Kansas. The median household income is $64,655, the median home value is $165,700, and the median age is 36.5.
The population has grown 0.7% since 2010 (12,642 → 12,733).
12,632
Population
1224
People / sq mi
$64,655
Median Income
$165,700
Median Home Value
Get Ottawa's next ACS population data
Subscribe for Population Review updates by email. No spam, unsubscribe anytime.
Ottawa covers 10.3 sq mi of land at 1224 people per square mile.
About Ottawa, KS
Housing cost is the defining feature of Ottawa: the median home is valued at $165,700. With 12,632 residents, Ottawa is a city in Kansas. It ranks #29 among cities in Kansas by population.
Household earnings are middling, with a median of $64,655 — below the US median of $78,538. Poverty runs at 9.7%, below the national 12.4%. Property is affordable here, the median home worth $165,700, with typical rent around $949.
Roughly 27.5% of adults have a bachelor’s, below the national 35.0%. About 9.3% of the workforce is home-based, below the national 14.0%, and the average commute runs about 22 minutes each way.
Ottawa city Population History (2010-2024)
The city of Ottawa city had a population of 12,642 in 2010 and 12,733 in 2024, a 0.7% growth over 14 years. The peak was 12,733 in 2024. Average annual growth rate: 0.06%.
12,733
Population (2024)
12,642
Population (2010)
12,733
Peak (2024)
0.06%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 12,642 |
| 2011 | 12,557 |
| 2012 | 12,513 |
| 2013 | 12,442 |
| 2014 | 12,315 |
| 2015 | 12,263 |
| 2016 | 12,271 |
| 2017 | 12,299 |
| 2018 | 12,273 |
| 2019 | 12,254 |
| 2020 | 12,633 |
| 2021 | 12,642 |
| 2022 | 12,609 |
| 2023 | 12,719 |
| 2024 | 12,733 |
Race & Ethnicity
| White | 90.5% |
| Black or African American | 1.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.5% |
| Two or More Races | 0.0% |
Economy & Income
$64,655
Median Household Income
$31,893
Per Capita Income
9.7%
Poverty Rate
1.4%
Unemployment Rate
Housing
$165,700
Median Home Value
$949
Median Rent
61.6%
Owner-Occupied
Education
94.5%
High School+
27.5%
Bachelor's+
Commute
0.0%
Drive Alone
75.8%
Public Transit
9.3%
Work From Home
21.6 min
Avg Commute
Community Profile
26.3%
Foreign Born
97.7%
Non-English at Home
9.4%
Veterans
17.7%
With Disability
93.9%
Health Insurance
93.5%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 22.0% |
| Manufacturing | 12.5% |
| Retail Trade | 12.2% |
| Education, Health Care & Social Services | 7.8% |
| Finance, Insurance & Real Estate | 5.8% |
| Construction | 4.4% |
| Public Administration | 4.3% |
| Arts, Entertainment & Food Services | 2.6% |
| Agriculture & Mining | 2.6% |
| Transportation & Warehousing | 1.6% |
| Information | 1.6% |
Largest cities in Kansas
Largest counties in Kansas
Part of Kansas
Metro areas in Kansas
City rankings
Frequently Asked Questions
Ottawa, Kansas has a population of 12,632 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 29th-largest city in Kansas.
The median household income in Ottawa, Kansas is $64,655, with 9.7% of residents living below the federal poverty level.
The median home value in Ottawa, Kansas is $165,700, with median monthly rent at $949 and a homeownership rate of 61.6%.
The median age in Ottawa, Kansas is 36.5 years. The population is 49.2% male and 50.8% female.
The population has grown 0.7% since 2010 (12,642 → 12,733).
Ottawa city, KS Climate
Ottawa city, KS has an average annual temperature of 12.9°C (55°F) and receives about 988 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.9°C
Avg Temp
988
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -2° / 28° | 32 mm |
| February | 1° / 34° | 30 mm |
| March | 7° / 45° | 72 mm |
| April | 13° / 55° | 90 mm |
| May | 18° / 65° | 132 mm |
| June | 23° / 74° | 138 mm |
| July | 26° / 79° | 89 mm |
| August | 25° / 78° | 96 mm |
| September | 21° / 69° | 111 mm |
| October | 14° / 58° | 87 mm |
| November | 7° / 44° | 68 mm |
| December | 1° / 33° | 43 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Ottawa city, KS
The most comfortable months to visit Ottawa city, KS are typically September, August and May, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 33°C high). The coldest is January (near -8°C low). June is usually the wettest month.
Where to stay near Ottawa
Visiting or relocating to Ottawa, KS? Compare hotels and short-term rentals across the metro — live availability and prices.
Top-rated places to stay near Ottawa
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to Ottawa?
Get relocation and cost-of-living insights for Ottawa, KS by email. No spam, unsubscribe anytime.
More from Kansas
Population 396,488
Population 197,199
Population 154,776
Population 143,720
Population 126,103
Full rankings of Kansas cities by population
Statewide data for Kansas
Population, race, income, age, and trends across Kansas
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.