Massac County Population

1850–2026

13,388

2026 projection

5.3% since 2020 (decrease)

05K10K15K20K186018801900192019401960198020002020

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 Massac County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202613,388-1140.84%
202513,502-1140.84%
202413,616-1250.91%
202313,741-1220.88%
202213,863-960.69%
202113,959-1821.29%
202014,141+3692.68%
201913,772-2651.89%
201814,037-2611.83%
201714,298-1631.13%

Showing 10 of 32 years.

Massac County Demographics

44.7median age

Median age

Female46.5 yrs
Male43.9 yrs

Adults

10,910
3,049 seniors (65+) · 28% of adults7,861 other adults

Sex

Female 51.3% · 7,110Male 48.7% · 6,755

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 139 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

Massac County Income

$65,116median household income

Median household income

$65,116

Half of households earn more, half earn less

Median earnings

$41,844

Typical yearly pay for a worker 25 or older.

Poverty rate

16.3%

About 1 in 6 residents

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

Massac County Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%52%45%
Never married27%30%24%
Divorced16%15%17%
Widowed7%2%12%
Separated2%2%2%

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