Buchanan County Population

1840–2026

83,482

2026 projection

1.2% since 2020 (decrease)

020K40K60K80K100K120K140K1840186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual 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 Buchanan County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202683,482-580.07%
202583,540-580.07%
202483,598+3470.42%
202383,251+2400.29%
202283,011-6300.75%
202183,641-8300.98%
202084,471-2,7413.14%
201987,212-8350.95%
201888,047-6110.69%
201788,658-4140.46%

Showing 10 of 33 years.

Buchanan County Demographics

38.9median age

Median age

Female40 yrs
Male38.1 yrs

Adults

64,924
14,577 seniors (65+) · 22% of adults50,347 other adults

Sex

Female 49.7% · 41,515Male 50.3% · 42,053

Population by age

MaleFemale85+ years, male: 65585+ years, female: 92480–84 years, male: 65180–84 years, female: 97475–79 years, male: 1,06575–79 years, female: 1,55470–74 years, male: 1,78570–74 years, female: 2,12365–69 years, male: 2,35665–69 years, female: 2,49060–64 years, male: 2,76860–64 years, female: 2,86455–59 years, male: 2,60655–59 years, female: 2,72150–54 years, male: 2,57350–54 years, female: 2,51745–49 years, male: 2,43645–49 years, female: 2,23340–44 years, male: 2,95540–44 years, female: 2,34035–39 years, male: 2,99035–39 years, female: 2,78830–34 years, male: 2,79630–34 years, female: 2,68725–29 years, male: 2,67725–29 years, female: 2,60920–24 years, male: 3,06720–24 years, female: 2,39215–19 years, male: 2,74215–19 years, female: 2,73010–14 years, male: 2,68510–14 years, female: 2,7965–9 years, male: 2,7495–9 years, female: 2,3590–4 years, male: 2,4970–4 years, female: 2,41485+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

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 836 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

Buchanan County Income

$62,158median household income

Median household income

$62,158

Half of households earn more, half earn less

Median earnings

$44,231

Typical yearly pay for a worker 25 or older.

Poverty rate

16%

About 1 in 6 residents

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

Buchanan County Marital Status

43% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married43%44%42%
Never married33%38%28%
Divorced17%15%19%
Widowed7%3%10%
Separated2%1%2%

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

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year