What is the population of Castle Rock?

The population of Castle Rock, WA is 2,304.

Where is Castle Rock located?

Castle Rock, WA is located at latitude 46.2751100 and longitude -122.9076100. It is in United States.

What is the elevation of Castle Rock?

Castle Rock, WA has an elevation of 18 meters (59 feet) above sea level.

What time zone is Castle Rock in?

Castle Rock, WA is in the America/Los_Angeles time zone.

What state is Castle Rock in?

Castle Rock is in the state of Washington, United States.

What county is Castle Rock, WA in?

Castle Rock is in Cowlitz County, Washington.

How has the population of Castle Rock changed?

The population of Castle Rock, WA has increased from 1,982 (2010) to 2,304 (2020), a change of 16.2%.

Castle Rock, Washington

Castle Rock: city in Cowlitz County, Washington, United States

About

Castle Rock is a city located in the county of Cowlitz in the U.S. state of Washington. Its population at the 2010 census was 1,982. After 10 years in 2020 city had an estimated population of 2,304 inhabitants.

Castle Rock locator map — Location of Castle Rock on Washington map.

Quick Facts about Castle Rock

Population	2,304 (2020)
Country	United States of America
State	Washington (United States)
County	Cowlitz County
Postal code	98611
Phone Area Codes	360
Latitude & Longitude	46.2751,-122.9076
Altitude	194 feet / 59, 18 meters
Time Zone	Pacific Time Zone, UTC−07:00, UTC−08:00
Local time	19:01:49 (22nd April 2026)
Population growth	13.98% (2010-2020)
Weather	46℉ Light Rain 7-days weather

Cowlitz County Washington Incorporated and Unincorporated areas Castle Rock Highlighted locator map image

Geography

Castle Rock is located at 46°16'30"N 122°54'27"W (46.2751100, -122.9076100).

Castle Rock map

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Weather

46°F

Light Rain

6 mph WSW Tuesday Night

Rain. Mostly cloudy, with a low around 46. West southwest wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and...

7-Day Forecast

Official website of Castle Rock

Official Website

Demographics

The population of Castle Rock increased by 13.98% in 10 years.

Year	Population	% Change	Method
2010	1,982	-	census
2011	2,126	6.77%	estimation process
2012	2,107	-0.9%	estimation process
2013	2,118	0.52%	estimation process
2014	2,127	0.42%	estimation process
2015	2,169	1.94%	estimation process
2016	2,199	1.36%	estimation process
2017	2,227	1.26%	estimation process
2018	2,262	1.55%	estimation process
2019	2,298	1.57%	estimation process
2020	2,304	0.26%	estimation process

Castle Rock zip code is 98611. County name: Cowlitz, County fips: 53015

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Where to Stay in Castle Rock

1Toutle River RV Resort

Rating: 4.1 (452)

150 Happy Trails Rd, Castle Rock, WA 98611, United States View details

Phone: +13602748373 | Website available

2Timberland Inn & Suites Castle Rock

Rating: 3.7 (167)

1271 Mt St Helens Way NE, Castle Rock, WA 98611, United States View details

Phone: +13602746002 | Website available

3BLUE HERON CHATEAU

Rating: 5 (5)

2846 Spirit Lake Hwy, Castle Rock, WA 98611, United States View details

Phone: +12537092422

Services and Civic Places in Castle Rock

1Castle Rock City Hall

Rating: 3 (1)

141 A St, Castle Rock, WA 98611 View details

Phone: +13602748181 | Website available

People born in Castle Rock (2)

People born in Castle Rock, including martial artist Benji Radach, philosopher Everett J. Nelson, .

More notable people

Nearby Schools and Colleges

Schools and campuses linked to Castle Rock, WA. Select a name to open its map and contact details.

Code	Name	City	ZIP
235750	Lower Columbia College	Longview (WA)	98632-0310

Nearby Transit Stations (16)

Rail and bus stations connected to Castle Rock, WA. Select a station to open its map and address details.

Code	Name	Address	Type
KEL	Kelso Multimodal Transportation Center	501 South First Street	RAIL
CTL	Centralia station	210 Railroad Avenue	RAIL
ELS	Elsie, Oregon	44573 Highway 26	BUS
MNI	Manning, Oregon	47000 Highway 26	BUS
ART	Astoria Transit Center	900 Marine Drive	BUS

Nearby Post Offices

Closest post offices linked to Castle Rock.

Post Office Name	City	ZIP
Castle Rock Post Office	Castle Rock (WA)	98611

Other places with the same name (3)

Castle Rock, Colorado The most populous city in Douglas County, Colorado. with a population of 70,567 people.
Castle Rock, Minnesota unincorporated community in Minnesota, United States with a population of 1,356 people.
Castle Rock, Wisconsin town in Grant County, Wisconsin, United States with a population of 253 people.

Other cities in Cowlitz County

Cities, towns, neighborhoods & other populated places in Cowlitz County , WA.

City Name	Population	Title
Longview	38,515	City in Washington state, United States
Kelso	12,438	Town and parish in Scottish Borders, Scotland
Woodland	6,548	Town in Washington state, United States
Longview Heights	3,851	Census designated place
Kalama	2,844	City in Cowlitz County, Washington, United States
West Longview	2,698	Unincorporated community

Distance to Other Cities

Castle Rock distances to largest Washington cities