Harrisburg Population

1910–2026

11,234

2026 projection

66.9% since 2020 (increase)

02K4K6K8K10K12K192019401960198020002020

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 Harrisburg. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202611,234+8297.97%
202510,405+2442.40%
202410,161+8058.60%
20239,356+93011.04%
20228,426+78310.24%
20217,643+91113.53%
20206,732+2884.47%
20196,444+1652.63%
20186,279+5269.14%
20175,753+1983.56%

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

Harrisburg is growing faster than Lincoln County, South Dakota, and the U.S.

  • Harrisburg+52.0%
  • Lincoln County+17.5%
  • South Dakota+5.3%
  • 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.

Harrisburg Demographics

31.1median age

Median age

Female30.6 yrs
Male31.6 yrs

Adults

5,604
312 seniors (65+) · 6% of adults5,292 other adults

Sex

Female 50.5% · 4,306Male 49.5% · 4,213

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 85 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

Harrisburg Income

$108,724median household income

Median household income

$108,724

Half of households earn more, half earn less

Median earnings

$56,916

Typical yearly pay for a worker 25 or older.

Poverty rate

0.5%

About 1 in 196 residents

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

Harrisburg Marital Status

65% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married65%69%61%
Never married26%22%29%
Divorced8%7%8%
Widowed2%1%2%
Separated<1%<1%0%

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