Jefferson County, Washington Population 2019

Jefferson County, Washington's estimated population is 31,191 with a growth rate of 0.97% in the past year according to the most recent United States census data. Jefferson County, Washington is the 27th largest county in Washington.

Year Population Growth Growth Rate
201831,7295381.72%
201731,1913000.97%
201630,8915601.85%
201530,3311920.64%
201430,1391430.48%
201329,9962070.69%
201229,789-52-0.17%
201129,841-50-0.17%
201029,8919,74548.37%
199020,1464,18126.19%
198015,9655,30449.75%
197010,6611,02210.60%
19609,639-1,979-17.03%
195011,6182,70030.28%
19408,9185726.85%
19308,3461,78927.28%
19206,557-1,780-21.35%
19108,3372,62545.96%
19005,712-2,656-31.74%
18908,3686,656388.79%
18801,71244435.02%
18701,268737138.79%
18605310.00%

Jefferson County, Washington Population Growth

Population Data via

Population by Race

Race Population
White27,815
Two or More Races1,121
American Indian and Alaska Native578
Asian554
Some Other Race177
Black or African American177
Native Hawaiian and Other Pacific Islander102

Jefferson County, Washington Population Pyramid 2019

Jefferson County, Washington Median Age

57.1


Total

55.7


Male

57.9


Female

Jefferson County, Washington Adults

There are 26,522 adults, (10,062 of whom are seniors) in Jefferson County, Washington.

Jefferson County, Washington Age Dependency

85.4

Age Dependency Ratio

61.1

Old Age Dependency Ratio

24.3

Child Dependency Ratio

Jefferson County, Washington Sex Ratio

Female

15,543

50.92%

Male

14,981

49.08%

Jefferson County, Washington Households and Families

Jefferson County, Washington Renter vs Owner Occupied by Household Type

Jefferson County, Washington Household Types

Type Owner Renter
Married82.8%17.2%
Male74.7%25.3%
All73.4%26.6%
Non Family62.9%37.1%
Female61%39%

73.4%

Rate of Home Ownership

Type Count Average Size Owned
All13,9032.1473.4
Married7,2612.5982.8
Non Family5,2791.2762.9
Female1,0003.0661
Male3633.1974.7

2.59

Average Family Size

2.14

Average Household Size

7.8%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Jefferson County, Washington Education

Education Attained Count Percentage
Less Than 9th Grade3411.36%
9th to 12th Grade1,0244.09%
High School Graduate5,23120.90%
Some College6,79327.14%
Associates Degree1,6456.57%
Bachelors Degree5,79523.15%
Graduate Degree4,20516.80%

Jefferson County, Washington Educational Attainment by Race

Name Total High School Bachelors
White22,71121,7249,396
Multiple Races700544157
Hispanic681627254
Native American41234637
Asian405307128
Black13513328
Other Race117952
Islander989456

The highest rate of high school graduation is among black people with a rate of 98.52%.

The highest rate of bachelors degrees is among islander people with a rate of 57.14%.

Name Average Male Female
Overall$29,000$33,125$25,510
Less Than High School$23,292$23,269$23,302
High School Grad$28,019$30,691$23,697
Some College$26,688$32,500$24,955
Bachelors Degree$31,019$42,042$26,549
Graduate Degree$42,500$48,636$32,941

$29,000

Average Earnings

$33,125

Average Male

$25,510

Average Female

Jefferson County, Washington Language

Jefferson County, Washington Language by Age

Jefferson County, Washington Language

95.60% of Jefferson County, Washington residents speak only English, while 4.40% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.66% of the population.

Jefferson County, Washington Poverty

Jefferson County, Washington Poverty by Race

Name Total In Poverty Poverty Rate
White26,6353,12511.73%
Hispanic93424826.55%
Native55123843.19%
Multiple96915816.31%
Other1284837.50%
Asian524295.53%
Black872731.03%
Islander6822.94%

12.80%

Overall Poverty Rate

12.31%

Male Poverty Rate

13.26%

Female Poverty Rate

Poverty in Jefferson County, Washington

The race most likely to be in poverty in Jefferson County, Washington is Native, with 43.19% below the poverty level.

The race least likely to be in poverty in Jefferson County, Washington is Islander, with 2.94% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.39%. Among those working part-time, it was 16.37%, and for those that did not work, the poverty rate was 14.93%.

Name Poverty
Less Than High School22.05%
Some College11.14%
High School10.76%
Bachelors or Greater8.59%
Name Poverty
Male Unemployed23.04%
Female Unemployed19.60%
Female Employed9.37%
Male Employed4.96%

Jefferson County, Washington Income

Jefferson County, Washington Income by Household Type

Name Median Mean
Households$51,842$69,425
Families$64,570$81,564
Married Families$72,124-
Non Families$30,828$47,595

Jefferson County, Washington Marital Status

Jefferson County, Washington Marital Status

Marriage Rates

55.9%

Overall Marriage Rate

55.6%

Male Marriage Rate

56.2%

Female Marriage Rate

Jefferson County, Washington Married by Age and Sex

Jefferson County, Washington Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 55-64.

Jefferson County, Washington Marital Status by Race

Jefferson County, Washington Veterans

4,129

Number of Veterans

3,732

Male Veterans

397

Female Veterans

War Veterans
Vietnam2,185
First Gulf War485
Korea400
Second Gulf War298
World War II237

Jefferson County, Washington Veterans by Race

Name Veterans % of Total
White3,92016.11%
2 or More10713.34%
Black4930.82%
Indian479.71%
Hispanic385.06%
Asian40.92%
Hawaiian22.04%

Jefferson County, Washington Veterans by Education

8.06%

Veteran Poverty Rate

33.10%

Veteran Disability Rate

Jefferson County, Washington Employment Status

45.4%

Labor Force Participation

41.7%

Employment Rate

7.5%

Unemployment Rate

Population of Cities in Jefferson County, Washington

  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