Washington County, Iowa Population 2018

Washington County, Iowa's estimated population is 22,281 with a growth rate of 0.75% in the past year according to the most recent United States census data. Washington County, Iowa is the 27th largest county in Iowa.

Year Population Growth Growth Rate
201722,2811660.75%
201622,11560.03%
201622,109-19-0.09%
201522,1281110.50%
201422,017760.35%
201321,941380.17%
201221,903840.38%
201121,8191290.59%
201021,6902,07810.60%
199019,612-529-2.63%
198020,1411,1746.19%
197018,967-439-2.26%
196019,406-151-0.77%
195019,557-498-2.48%
194020,0552331.18%
193019,822-599-2.93%
192020,4214962.49%
191019,925-793-3.83%
190020,7182,25012.18%
189018,468-1,906-9.36%
188020,3741,4227.50%
187018,9524,71733.14%
186014,2359,278187.17%
18504,9573,363210.98%
18401,5940.00%

Washington County, Iowa Population Growth

Population Data via

Population by Race

Race Population
White21,332
Two or More Races247
Black or African American195
Some Other Race178
Asian103
American Indian and Alaska Native49
Native Hawaiian and Other Pacific Islander11

Race Data via US Census (2016 ACS 5-Year Survey)

Washington County, Iowa Population Pyramid 2018

0%2%4%6%8%10% Male Population0%2%4%6%8%10% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Washington County, Iowa Median Age

41.2


Total

40


Male

42.8


Female

Washington County, Iowa Adults

There are 16,630 adults, (4,091 of which are seniors) in Washington County, Iowa.

Washington County, Iowa Age Dependency

76.2

Age Dependency Ratio

32.6

Old Age Dependency Ratio

43.6

Child Dependency Ratio

Washington County, Iowa Sex Ratio

Female

11,143

50.39%

Male

10,972

49.61%

Washington County, Iowa Households and Families

Washington County, Iowa Renter vs Owner Occupied by Household Type

Washington County, Iowa Household Types

Type Owner Renter
Married88.7%11.3%
All72.9%27.1%
Male70.1%29.9%
Non Family55.3%44.7%
Female40.1%59.9%

72.9%

Rate of Home Ownership

Washington County, Iowa Households by Type

Type Count Average Size Owned
All8,7572.4972.9
Married4,8213.0788.7
Non Family2,7721.2355.3
Female7963.0340.1
Male3683.2370.1

2.97

Average Family Size

2.49

Average Household Size

7.2%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Washington County, Iowa Households

Washington County, Iowa Education

Washington County, Iowa Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade7314.88%
9th to 12th Grade6434.29%
High School Graduate5,61237.47%
Some College3,22421.52%
Associates Degree1,63810.94%
Bachelors Degree2,16914.48%
Graduate Degree9616.42%

Washington County, Iowa Educational Attainment by Race

Name Total High School Bachelors
White14,12612,9413,039
Hispanic56339358
Black1251241
Asian1038532
Other Race8241
Multiple Races767617
Islander1111
Native American33

The highest rate of high school graduation is among native american people with a rate of 100.00%.

The highest rate of bachelors degrees is among native american people with a rate of 31.07%.

Washington County, Iowa Earnings by Educational Attainment

Name Average Male Female
Overall$35,384$39,976$28,979
Less Than High School$25,278$28,589$14,659
High School Grad$31,425$34,817$21,650
Some College$36,222$41,807$30,620
Bachelors Degree$41,195$47,944$35,872
Graduate Degree$54,143$65,250$49,904

$35,384

Average Earnings

$39,976

Average Male

$28,979

Average Female

Washington County, Iowa Language

Washington County, Iowa Language by Age

Washington County, Iowa Language

90.63% of Washington County, Iowa residents speak only English, while 9.37% speak other languages. The largest non-English language is OtherIndoEuro, which is spoken by 4.90% of the population.

Washington County, Iowa Poverty

Washington County, Iowa Poverty by Race

Name Total In Poverty Poverty Rate
White19,9501,5727.88%
Hispanic1,17422018.74%
Multiple2125927.83%
Black1835932.24%
Native494693.88%
Other1072018.69%
Asian1031110.68%

9.00%

Overall Poverty Rate

7.47%

Male Poverty Rate

10.49%

Female Poverty Rate

Poverty in Washington County, Iowa

The race most likely to be in poverty in Washington County, Iowa is Native, with 93.88% below the poverty level.

The race least likely to be in poverty in Washington County, Iowa is White, with 7.88% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.57%. Among those working part-time, it was 10.89%, and for those that did not work, the poverty rate was 14.98%.

Washington County, Iowa Poverty Rate by Education

Name Poverty
Less Than High School13.66%
High School8.68%
Some College7.57%
Bachelors or Greater1.38%

Washington County, Iowa Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed24.50%
Male Unemployed23.58%
Female Employed6.04%
Male Employed3.83%

Washington County, Iowa Income

Washington County, Iowa Income by Household Type

Name Median Mean
Households$56,864$70,004
Families$70,787$78,298
Married Families$78,344$
Non Families$34,188$47,883

Washington County, Iowa Marital Status

Washington County, Iowa Marital Status

Marriage Rates

56.9%

Overall Marriage Rate

59.1%

Male Marriage Rate

54.8%

Female Marriage Rate

Washington County, Iowa Married by Age and Sex

Washington County, Iowa Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 55To64.

Washington County, Iowa Marital Status by Race

Washington County, Iowa Veterans

Washington County, Iowa Veterans by War

1,328

Number of Veterans

1,254

Male Veterans

74

Female Veterans

Name Veterans
Vietnam477
Korea205
Second Gulf War183
First Gulf War165
World War II62

Washington County, Iowa Veterans by Age

Name Veterans
65 to 74389
75+375
35 to 54239
55 to 64208
18 to 34117

Washington County, Iowa Veterans by Race

Name Veterans % of Total
White1,2898.00%
Hispanic497.00%
Black3422.52%
Other43.85%
2 or More10.98%

Washington County, Iowa Veterans by Education

4.06%

Veteran Poverty Rate

28.33%

Veteran Disability Rate

Washington County, Iowa Employment Status

Washington County, Iowa Employment by Age

68.6%

Labor Force Participation

65.7%

Employment Rate

4.2%

Unemployment Rate

Washington County, Iowa Employment by Race

Washington County, Iowa Employment by Education

Population of Cities in Washington County, Iowa

City 2010 Census 2016 Estimated Growth Growth Rate
Washington727074241542.12%
Kalona237125341636.87%
Wellman14111424130.92%
Riverside9931039464.63%
Keota 1011966-45-4.45%
Brighton65565940.61%
Ainsworth567584173.00%
Crawfordsville26427062.27%
West Chester14614821.37%
Coppock 474700.00%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990