Castle Rock, Washington Population 2021

2,370
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Castle Rock is a city located in Washington. With a 2020 population of 2,370, it is the 156th largest city in Washington and the 7005th largest city in the United States. Castle Rock is currently growing at a rate of 1.54% annually and its population has increased by 19.58% since the most recent census, which recorded a population of 1,982 in 2010. Castle Rock reached it's highest population of 2,370 in 2021. Spanning over 2 miles, Castle Rock has a population density of 1,138 people per square mile.

The average household income in Castle Rock is $59,182 with a poverty rate of 12.17%. The median rental costs in recent years comes to $795 per month, and the median house value is $165,400. The median age in Castle Rock is 31.5 years, 29.6 years for males, and 31.8 years for females. For every 100 females there are 87.0 males.

Castle Rock Demographics

According to the most recent ACS, the racial composition of Castle Rock was:

  • White: 92.74%
  • Two or more races: 3.55%
  • Native Hawaiian or Pacific Islander: 1.46%
  • Other race: 1.21%
  • Native American: 1.05%
  • Black or African American: 0.00%
  • Asian: 0.00%
The current population of Castle Rock, Washington is 2,370, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 2,262.The last official US Census in 2010 recorded the population at 1,982.

Castle Rock, Washington Population 2021

Population by Race

Race Population Percentage
White2,92492.74%
Two or More Races1123.55%
Native Hawaiian and Other Pacific Islander461.46%
Some Other Race381.21%
American Indian and Alaska Native331.05%
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Castle Rock Population by Race

Castle Rock Population Pyramid 2021

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Castle Rock Median Age

31.5


Total

29.6


Male

31.8


Female

Castle Rock Adults

There are 2,183 adults, (402 of whom are seniors) in Castle Rock.

Castle Rock Age Dependency

77

Age Dependency Ratio

22.6

Old Age Dependency Ratio

54.5

Child Dependency Ratio

Castle Rock Sex Ratio

Female

1,686

53.47%

Male

1,467

46.53%

Castle Rock Population by Age

Castle Rock Renter vs Owner Occupied by Household Type

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Castle Rock Household Types

Type Owner Renter
Married80.3%19.7%
Male65.5%34.5%
All62.3%37.7%
Female59.1%40.9%
Non Family36.6%63.4%

62.3%

Rate of Home Ownership

Castle Rock Households and Families

Type Count Average Size Owned
All1,1632.7162.3
Married5323.4880.3
Non Family3631.0736.6
Female1813.1859.1
Male873.8565.5

3.26

Average Family Size

2.71

Average Household Size

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Castle Rock Households by Type

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Education Attained Count Percentage
Less Than 9th Grade412.05%
9th to 12th Grade1336.66%
High School Graduate76138.11%
Some College64732.40%
Associates Degree1195.96%
Bachelors Degree20710.37%
Graduate Degree894.46%
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Castle Rock Educational Attainment by Sex (over 25)

Castle Rock Educational Attainment by Race

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Name Total High School Bachelors
White1,8391,686273
Hispanic826117
Multiple Races43436
Islander2626
Native American1414
Other Race11

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 hispanic people with a rate of 20.73%.

Castle Rock Educational Attainment by Race

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Name Average Male Female
Overall$34,940$45,990$24,286
Less Than High School$41,875$53,068$
High School Grad$35,170$43,693$18,981
Some College$26,750$33,750$23,917
Bachelors Degree$35,766$49,583$35,161
Graduate Degree$$135,600$

$34,940

Average Earnings

$45,990

Average Male

$24,286

Average Female

Castle Rock Earnings by Educational Attainment

Castle Rock Language by Age

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Castle Rock Language

94.63% of Castle Rock residents speak only English, while 5.37% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 4.93% of the population.

Castle Rock Language

Castle Rock Poverty by Race

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Name Total In Poverty Poverty Rate
White2,70934312.66%
Multiple1121916.96%
Hispanic229177.42%
Native33721.21%

12.17%

Overall Poverty Rate

7.91%

Male Poverty Rate

15.89%

Female Poverty Rate

Poverty in Castle Rock

The race most likely to be in poverty in Castle Rock is Native, with 21.21% below the poverty level.

The race least likely to be in poverty in Castle Rock is Hispanic, with 7.42% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.56%. Among those working part-time, it was 10.42%, and for those that did not work, the poverty rate was 24.61%.

Castle Rock Poverty

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Name Poverty
Some College21.67%
High School11.83%
Bachelors or Greater3.04%
Less Than High School2.87%

Castle Rock Poverty Rate by Education

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Name Poverty
Female Unemployed49.28%
Female Employed4.91%
Male Unemployed0.00%
Male Employed0.94%

Castle Rock Poverty Rate by Employment Status and Sex

Castle Rock Income by Household Type

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Name Median Mean
Households$50,573$59,182
Families$57,028$64,108
Married Families$67,092-
Non Families$34,073$41,627
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Income by Household Type

Castle Rock Marital Status

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Marriage Rates

48.2%

Overall Marriage Rate

51.8%

Male Marriage Rate

45.3%

Female Marriage Rate

Castle Rock Married by Age and Sex

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Castle Rock 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 45-54.

Castle Rock Marital Status by Race

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Castle Rock Marital Status

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196

Number of Veterans

196

Male Veterans

Female Veterans

War Veterans
Vietnam79
First Gulf War41
Second Gulf War30
Korea6
World War II

Castle Rock Veterans by War

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Age Group Veterans
75+57
65 to 7450
35 to 5437
55 to 6433
18 to 3419

Castle Rock Veterans by Age

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Name Veterans % of Total
White1869.00%
Hawaiian1038.46%

Castle Rock Veterans by Race

Castle Rock Veterans by Education

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5.10%

Veteran Poverty Rate

14.80%

Veteran Disability Rate

Castle Rock Veterans by Education

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58.1%

Labor Force Participation

55.1%

Employment Rate

5.2%

Unemployment Rate

Castle Rock Employment by Age

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Castle Rock Employment by Race

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Castle Rock Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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61.75%

Born in Washington

98.26%

Native Born

1.74%

Foreign Born

1.62%

Non Citizen

0.13%

Naturalized

Place of Birth

98.26% of Castle Rock residents were born in the United States, with 61.75% having been born in Washington. 1.62% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Castle Rock Place of Birth

Year Population Growth Annual Growth Rate
20212,370361.54%
20202,334361.57%
20192,298361.59%
20182,262351.57%
20172,227281.27%
20162,199301.38%
20152,169421.97%
20142,12790.42%
20132,118110.52%
20122,107-19-0.89%
20112,126110.52%
20102,1150.00%

Castle Rock Population by Year