Delta Population

1910–2026

3,912

2026 projection

8% since 2020 (increase)

01K2K3K4K192019401960198020002020

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 Delta. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20263,912+441.14%
20253,868+491.28%
20243,819+350.92%
20233,784+451.20%
20223,739+381.03%
20213,701+792.18%
20203,622+531.49%
20193,569+310.88%
20183,538+130.37%
20173,525+431.23%

Showing 10 of 27 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

Delta is growing faster than the U.S., and slower than Millard County and Utah.

  • Utah+7.8%
  • Millard County+7.7%
  • Delta+6.3%
  • United States+3.1%

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.

Delta Demographics

32.1median age

Median age

Female31.3 yrs
Male33.4 yrs

Adults

2,603
514 seniors (65+) · 20% of adults2,089 other adults

Sex

Female 49.4% · 1,832Male 50.6% · 1,873

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 37 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

Delta Income

$78,506median household income

Median household income

$78,506

Half of households earn more, half earn less

Median earnings

$43,668

Typical yearly pay for a worker 25 or older.

Poverty rate

9.8%

About 1 in 10 residents

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

Delta Marital Status

58% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married58%58%57%
Never married28%28%28%
Divorced10%11%10%
Widowed3%3%4%
Separated<1%1%<1%

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