Plain City Population

1870–2026

9,501

2026 projection

21.3% since 2020 (increase)

02K4K6K8K10K18801900192019401960198020002020

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 Plain City. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20269,501+2452.65%
20259,256+3193.57%
20248,937+3063.55%
20238,631+2412.87%
20228,390+1922.34%
20218,198+3654.66%
20207,833+1622.11%
20197,671+5637.92%
20187,108+3445.09%
20176,764+2914.50%

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

Plain City is growing faster than Weber County, Utah, and the U.S.

  • Plain City+16.4%
  • Utah+7.8%
  • Weber County+5.8%
  • 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.

Plain City Demographics

38.3median age

Median age

Female35.4 yrs
Male39.9 yrs

Adults

5,736
915 seniors (65+) · 16% of adults4,821 other adults

Sex

Female 53.2% · 4,463Male 46.8% · 3,933

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 84 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

Plain City Income

$132,766median household income

Median household income

$132,766

Half of households earn more, half earn less

Median earnings

$71,250

Typical yearly pay for a worker 25 or older.

Poverty rate

2.6%

About 1 in 38 residents

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

Plain City Marital Status

75% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married75%82%69%
Never married19%13%23%
Divorced4%3%4%
Widowed3%1%4%
Separated<1%0%<1%

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