Population

83,815

US Census estimate, July 2025

Median home value

$652,900

Owner-occupied units

Castle Rock, CO

Colorado · 39.376° N, 104.853° W · 35 sq mi

Castle Rock is a city in Colorado, with a population of 83,815 and about 2,412 residents per square mile. The median household earns $145,197 a year, and the median home is worth $652,900.

Conditions

Humidity & wind

—

UV index

—

Sunrise & sunset

—

Local time

—

Size & density

Land area

35 sq mi

Water excluded

Population density

2,412

People per square mile

Rank by population

#458

Of cities on this site

Rank by area

#396

Of cities on this site

Money & housing

Median household income

$145,197

US median ≈ $78,538

Median gross rent

$2,000

Per month

Homeownership

78.8%

US ≈ 65%

Average commute

28.6 min

One way

People

Median age

36.5

US median 39.1

Bachelor's degree +

55.9%

Age 25 and over

Foreign born

5.6%

Households

28,219

2.78 people each

What people here do for work

Education & health care 20.4^%

Professional & business services 16.8^%

Finance, insurance & real estate 10.4^%

Retail trade 9.8^%

Top four industries · share of all workers · ACS 2024

Wealthiest person in Colorado

Name

Philip Anschutz

Forbes, Apr 2025

Net worth

$16.9B

As of 25 Apr 2025 — not live

Lives in

Denver

Source of wealth

Energy, sports, entertainment

Compiled from public reporting, not from an official dataset, and not independently verified.

Largest employer in Colorado · private sector

Employer

UCHealth

Sector

Healthcare

Compiled from public reporting, not from an official dataset, and not independently verified. Government employers are excluded.

Largest public company in Colorado

Company

Arrow Electronics

Revenue

$27.9B

Fiscal year 2024

Headquarters

Centennial

Ticker

ARW

Compiled from public reporting, not from an official dataset, and not independently verified.

Forgotten Flicks movie T-shirts on TeePublic

State of Colorado

State bird

Lark Bunting

State flower

Rocky Mountain Columbine

State capital

Denver

Nickname

The Centennial State

Compare Castle Rock with

Castle Rock vs Colorado SpringsSide by side
Castle Rock vs PuebloSide by side
Castle Rock vs ParkerSide by side
Castle Rock vs Highlands RanchSide by side
Castle Rock vs Brooklyn ParkSide by side
Castle Rock vs The VillagesSide by side

Cities near Castle Rock

Parker, CO10 mi · 65,985
Highlands Ranch, CO13 mi · 102,257
Centennial, CO15 mi · 108,658
Aurora, CO24 mi · 410,053
Lakewood, CO26 mi · 156,927
Denver, CO27 mi · 740,613
Arvada, CO35 mi · 122,901
Commerce City, CO35 mi · 72,345