Demographics of Ottawa city, Kansas

Ottawa city, Kansas had 12,716 people on July 1, 2025, by the Census Bureau’s estimate: +84 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Ottawa city, in four figures

12,716
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 12,678 ±37.; +0.7%
Change since July 2020: +84 people.; 36.9 ±2.0
Median age: ACS 2020–⁠2024.; $71,699 ±$12,962
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Ottawa city, Kansas's population grew 0.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Ottawa city, Kansas's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Ottawa city, Kansas's population grew 0.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Ottawa city, Kansas's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	12,632	100.0	100.0
2021	12,637	100.0	100.2
2022	12,599	99.7	100.7
2023	12,703	100.6	101.6
2024	12,714	100.6	102.5
2025	12,716	100.7	103.1

Population of Ottawa city, Kansas on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	12,632	—
2021	12,637	+5
2022	12,599	−38
2023	12,703	+104
2024	12,714	+11
2025	12,716	+2

Age, 2020–2024

The median age is 36.9 ±2.0: for men 36.2 ±3.8 and for women 37.4 ±2.0. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Ottawa city by age, ACS 2020–2024
Age	People	Share	Kansas	United States
Under 5	694 ±165	5.5% ±1.3	6.0% ±<0.1	5.6% ±<0.1
5 to 17	2,196 ±247	17.3% ±1.9	17.8% ±0.1	16.3% ±<0.1
18 to 24	1,582 ±228	12.5% ±1.8	10.2% ±0.1	9.1% ±<0.1
25 to 44	3,036 ±305	23.9% ±2.4	25.8% ±0.1	26.9% ±<0.1
45 to 64	3,281 ±360	25.9% ±2.8	23.3% ±0.1	24.8% ±<0.1
65 and over	1,889 ±288	14.9% ±2.3	17.0% ±0.2	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $71,699 ±$12,962, and income per person $33,124 ±$2,656, in 2024 dollars. The median is $74,275 ±$475 in Kansas and $80,734 ±$166 in the United States.

Households by income

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Households in Ottawa city by income, ACS 2020–2024
Household income	Households	Share	Kansas	United States
Under $25,000	717 ±181	13.7% ±3.4	13.9% ±0.3	14.6% ±<0.1
$25,000 to $49,999	1,297 ±264	24.8% ±4.9	18.9% ±0.3	16.7% ±<0.1
$50,000 to $74,999	647 ±189	12.4% ±3.6	17.7% ±0.3	15.5% ±<0.1
$75,000 to $99,999	848 ±205	16.2% ±3.9	13.5% ±0.3	12.6% ±<0.1
$100,000 to $149,999	1,150 ±290	22.0% ±5.5	17.7% ±0.3	17.5% ±<0.1
$150,000 to $199,999	529 ±209	10.1% ±4.0	8.8% ±0.2	9.6% ±<0.1
$200,000 or more	6 to 84	0.1% to 1.6%	9.6% ±0.2	13.4% ±0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Ottawa city by age, ACS 2020–2024
Age	Below poverty	Rate	Kansas	United States
All ages	1,112 ±356	9.1% ±2.9	11.3% ±0.2	12.5% ±0.1
Under 18	106 to 410	3.8% to 14.1%	13.1% ±0.4	16.1% ±0.1
18 to 59	629 ±221	9.5% ±3.3	11.5% ±0.2	11.6% ±0.1
60 and over	225 ±100	8.2% ±3.5	9.0% ±0.3	11.0% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Housing, 2020–2024

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Housing in Ottawa city, ACS 2020–2024
Measure	Ottawa city	Kansas	United States
Housing units	5,583 ±195	1,293,635 ±880	143,775,355 ±10,234
Occupied	93.7% ±2.4	90.8% ±0.3	89.9% ±0.1
Vacant	6.3% ±3.0	9.2% ±0.3	10.1% ±0.1
Owner occupied	59.8% ±4.9	67.2% ±0.4	65.2% ±0.3
Renter occupied	40.2% ±4.1	32.8% ±0.3	34.8% ±0.1
Median home value	$166,500 ±$7,220	$217,200 ±$1,343	$332,700 ±$236
Median gross rent	$1,032 ±$49	$1,060 ±$7	$1,413 ±$2
Median year built	1967 ±4	1976 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Ottawa city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Kansas	United States
Hispanic or Latino	681 ±197	5.4% ±1.6	13.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	11,041 ±250	87.1% ±2.0	72.7% ±0.1	57.4% ±<0.1
Black alone, not Hispanic	213 ±105	1.7% ±0.8	5.2% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	53 to 165	0.4% to 1.3%	2.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	43 to 179	0.3% to 1.4%	0.4% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 17	0% to 0.1%	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 18	0% to 0.1%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	517 ±173	4.1% ±1.4	4.8% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Ottawa city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Kansas	United States
Born in the state	8,675 ±388	68.4% ±3.1	59.2% ±0.3	57.3% ±<0.1
Born in another state	3,660 ±393	28.9% ±3.1	32.4% ±0.2	26.9% ±<0.1
Born a citizen outside the states	14 to 152	0.1% to 1.2%	1.1% ±<0.1	1.7% ±<0.1
Born abroad	260 ±121	2.1% ±1.0	7.4% ±0.1	14.1% ±<0.1
Naturalized citizens	0 to 77	0% to 0.6%	3.2% ±0.1	7.4% ±<0.1
Not citizens	103 to 347	0.8% to 2.7%	4.2% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Ottawa city among the places of Kansas

29th of 65 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Kansas page.

Places of Kansas near Ottawa city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Newton city	18,397 ±22
Andover city	15,965 ±404
Great Bend city	14,479 ±31
McPherson city	13,995 ±35
El Dorado city	12,769 ±49
Ottawa city	12,678 ±37
Arkansas City city	11,884 ±25
Winfield city	11,711 ±45
Lansing city	11,246 ±25
Haysville city	11,117 ±322
Merriam city	11,085 ±31

Rankings this appears in

No. 6 Places in Kansas by median age
No. 15 Places in Kansas by median household income
No. 18 Places in Kansas by poverty rate
No. 20 Places in Kansas by per capita income
No. 21 Places in Kansas by homeownership rate
No. 23 Places in Kansas by median rent

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026