Ottawa County, Oklahoma

Ottawa County is a located in the  of. As of 2000, the population was 33,194. Its is.

Geography
According to the, the county has a total area of 1,255 (485 ). 1,221 km² (471 mi²) of it is land and 35 km² (13 mi²) of it (2.77%) is water.

Adjacent counties

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 * (east)
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Demographics
As of the of 2000, there were 33,194 people, 12,984 households, and 9,114 families residing in the county. The was 27/km² (70/mi²). There were 14,842 housing units at an average density of 12/km² (32/mi²). The racial makeup of the county was 74.15%, 0.58% or , 16.53% , 0.29% , 0.14% , 1.54% from , and 6.78% from two or more races. 3.20% of the population were or  of any race.

There were 12,984 households out of which 30.90% had children under the age of 18 living with them, 55.60% were living together, 10.70% had a female householder with no husband present, and 29.80% were non-families. 26.60% of all households were made up of individuals and 13.60% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 2.98.

In the county, the population was spread out with 25.70% under the age of 18, 9.70% from 18 to 24, 24.80% from 25 to 44, 22.90% from 45 to 64, and 16.90% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 94.30 males. For every 100 females age 18 and over, there were 90.10 males.

The median income for a household in the county was $27,507, and the median income for a family was $32,368. Males had a median income of $25,725 versus $18,879 for females. The for the county was $14,478. About 13.00% of families and 16.60% of the population were below the, including 23.80% of those under age 18 and 12.20% of those age 65 or over.

NRHP sites
The following sites are in Ottawa County are listed on the :