Is it cheaper to live in Rapid City or Washington?

Rapid City, SD is cheaper. Its monthly baseline of $970 (1BR rent + utilities) runs about 55% below Washington, DC's $2,150, mainly because of rent.

How much more do you need to earn to live in Rapid City than in Washington?

To keep rent near the recommended 30% of gross income, you'd want to earn roughly $32,000 a year in Rapid City versus $75,000 in Washington.

Which has lower taxes, Rapid City or Washington?

Rapid City is taxed under South Dakota's rules (no state income tax and a 4.2% state sales tax); Washington under District of Columbia's (a top state income tax rate of 10.75% and a 6% state sales tax).

Rapid City vs Washington Cost of Living 2026

Rapid City

South Dakota

$970/mo est.

Washington

District of Columbia

$2,150/mo est.

Monthly estimate = 1BR rent + electricity + gas

A one-person monthly baseline (1BR rent plus typical utilities) runs $970 in Rapid City, SD versus $2,150 in Washington, DC. Overall, Rapid City, SD is roughly 55% cheaper to live in day-to-day than Washington, DC, driven mainly by rent.

Median household income is $65,712 in Rapid City, SD and $106,287 in Washington, DC — about 38% higher in Washington, DC. South Dakota has no state income tax and a 4.2% state sales tax; District of Columbia has a top state income tax rate of 10.75% and a 6% state sales tax.

Rapid City, SD

Washington, DC

Rent

Studio

$533

$1,763

+231% in Washington, DC

1 Bedroom

$807

$1,885

+134% in Washington, DC

2 Bedroom

$1,156

$1,949

+69% in Washington, DC

3 Bedroom

$1,260

$2,249

+78% in Washington, DC

Buying a Home

Median Home Value

$270,000

$724,600

+168% in Washington, DC

Income

Median Household Income

$65,712

$106,287

+62% in Washington, DC

Metro Median Wage (annual)

$46,270

$71,060

+54% in Washington, DC

People & Lifestyle

Median Age

39.0 yr

34.9 yr

+4.1 yr in Rapid City, SD

Homeownership

61.6%

41.1%

+20.5 pp in Rapid City, SD

Bachelor's+ (25+)

36.4%

63.6%

+27.2 pp in Washington, DC

Avg Commute

17.4 min

30.3 min

+12.9 min in Washington, DC

Crime (per 100k/yr)

Violent Crime

718.9

936.3

+30% in Washington, DC

Property Crime

3,795.8

3,627.9

+4% in Rapid City, SD

FBI Crime Data Explorer. Offenses per 100,000 residents per year; agency reporting practices vary, so this is approximate.

Climate

Avg Annual Temperature

47.1°F

58.2°F

+11.1°F in Washington, DC

Annual Precipitation

16.3 in

39.7 in

+23.5 in in Washington, DC

Gas

Regular Gasoline

$3.85/gal

$3.94/gal

+2% in Washington, DC

Area: Midwest (PADD 2) vs East Coast (PADD 1).

Public Transit

Base Fare (one-way)

—

$2.00

Adult base one-way fare — — vs WMATA (Metrobus) (2026).

Utilities

Electricity (¢/kWh)

15.4

24.4

+59% in Washington, DC

Natural Gas ($/MCF)

$15.26

$27.28

+79% in Washington, DC

Residential, state-level averages (EIA). MCF = 1,000 cubic feet.

Groceries

Milk (gal)

$4.31

$4.00

+7% in Rapid City, SD

Bread (lb)

$1.66

$1.75

+5% in Washington, DC

Eggs (doz)

$3.63

$2.21

+39% in Rapid City, SD

Ground Beef (lb)

$6.77

$6.45

+5% in Rapid City, SD

Chicken (lb)

$2.10

$1.90

+9% in Rapid City, SD

Bananas (lb)

$0.62

about equal

Average prices — Midwest vs South (BLS). Regional where available, otherwise U.S. average.

State Taxes

Sales Tax (SD / DC)

4.2%

+1.8 pp in DC

Income Tax (top rate)

None

10.75%

+10.8 pp in DC

Rapid City vs Washington — FAQ

Is it cheaper to live in Rapid City or Washington?: Rapid City, SD is cheaper. Its monthly baseline of $970 (1BR rent + utilities) runs about 55% below Washington, DC's $2,150, mainly because of rent.
How much more do you need to earn to live in Rapid City than in Washington?: To keep rent near the recommended 30% of gross income, you'd want to earn roughly $32,000 a year in Rapid City versus $75,000 in Washington.
Which has lower taxes, Rapid City or Washington?: Rapid City is taxed under South Dakota's rules (no state income tax and a 4.2% state sales tax); Washington under District of Columbia's (a top state income tax rate of 10.75% and a 6% state sales tax).

Sources: US Census Bureau, ACS 5-Year (rent, income, home value, demographics); NOAA Climate Normals 1981–2010 (climate); EIA weekly retail (gas); Tax Foundation 2026 (state taxes).