Harlan Population

1860–2026

4,860

2026 projection

0.7% since 2020 (decrease)

01K2K3K4K5K6K186018801900192019401960198020002020

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 Harlan. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20264,860+10.02%
20254,859-380.78%
20244,897+40.08%
20234,893+250.51%
20224,868-320.65%
20214,900+70.14%
20204,893+280.58%
20194,865-420.86%
20184,907-10.02%
20174,908-290.59%

Showing 10 of 32 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

Harlan has a population change lower than Shelby County, Iowa, and the U.S.

  • United States+3.1%
  • Iowa+1.5%
  • Shelby County−0.2%
  • Harlan−0.7%

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.

Harlan Demographics

44.6median age

Median age

Female46.4 yrs
Male41.9 yrs

Adults

3,819
1,170 seniors (65+) · 31% of adults2,649 other adults

Sex

Female 52.3% · 2,558Male 47.7% · 2,333

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 49 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

Harlan Income

$57,488median household income

Median household income

$57,488

Half of households earn more, half earn less

Median earnings

$48,906

Typical yearly pay for a worker 25 or older.

Poverty rate

9.1%

About 1 in 11 residents

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

Harlan Marital Status

53% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married53%58%49%
Never married26%27%24%
Divorced9%7%11%
Widowed12%8%17%
Separated<1%<1%0%

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