Lost Springs Population

2010–2026

3

2026 projection

50% since 2020 (decrease)

0123456201020122014201620182020202220242026

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 Lost Springs. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026300.00%
2025300.00%
2024300.00%
2023300.00%
2022300.00%
20213-350.00%
20206+250.00%
2019400.00%
2018400.00%
2017400.00%

Showing 10 of 17 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

Lost Springs has a population change lower than Converse County, Wyoming, and the U.S.

  • United States+3.1%
  • Wyoming+1.9%
  • Converse County+0.6%
  • Lost Springs0.0%

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.

Lost Springs Demographics

0median age

Median age

Female0 yrs
Male0 yrs

Adults

1
0 seniors (65+) · 0% of adults1 other adults

Sex

Female 0% · 0Male 100% · 1

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 0.01 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

Lost Springs Marital Status

0% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married0%0%0%
Never married100%100%0%
Divorced0%0%0%
Widowed0%0%0%
Separated0%0%0%

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