Rock Springs Population

1870–2026

22,817

2026 projection

3% since 2020 (decrease)

05K10K15K20K25K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Rock Springs. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202622,817-1190.52%
202522,936-790.34%
202423,015+280.12%
202322,987-140.06%
202223,001-1810.78%
202123,182-3441.46%
202023,526-350.15%
201923,561-40.02%
201823,565-2411.01%
201723,806-3161.31%

Showing 10 of 31 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Rock Springs has a population change about the same as Sweetwater County, and lower than Wyoming and the U.S.

  • United States+3.1%
  • Wyoming+1.9%
  • Sweetwater County−2.2%
  • Rock Springs−2.4%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Rock Springs Demographics

35.9median age

Median age

Female37 yrs
Male35.2 yrs

Adults

17,147
2,958 seniors (65+) · 17% of adults14,189 other adults

Sex

Female 48.1% · 11,133Male 51.9% · 11,994

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 231 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Rock Springs Income

$69,168median household income

Median household income

$69,168

Half of households earn more, half earn less

Median earnings

$49,185

Typical yearly pay for a worker 25 or older.

Poverty rate

16.1%

About 1 in 6 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Rock Springs Marital Status

47% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married47%47%47%
Never married31%38%24%
Divorced13%10%16%
Widowed6%3%10%
Separated2%2%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201