McKenzie County Population

1890–2026

15,586

2026 projection

5.5% since 2020 (increase)

05K10K15K20K1900192019401960198020002020

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 McKenzie County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202615,586+3942.59%
202515,192+3942.66%
202414,798+5253.68%
202314,273+3802.74%
202213,893+350.25%
202113,858-9206.23%
202014,778-2601.73%
201915,038+1,45710.73%
201813,581+8666.81%
201712,715+1110.88%

Showing 10 of 27 years.

McKenzie County Demographics

31.5median age

Median age

Female31.2 yrs
Male31.7 yrs

Adults

9,871
1,336 seniors (65+) · 14% of adults8,535 other adults

Sex

Female 46.4% · 6,644Male 53.6% · 7,677

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 143 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

McKenzie County Income

$93,404median household income

Median household income

$93,404

Half of households earn more, half earn less

Median earnings

$70,304

Typical yearly pay for a worker 25 or older.

Poverty rate

12%

About 1 in 8 residents

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

McKenzie County Marital Status

56% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married56%50%63%
Never married34%40%27%
Divorced5%6%5%
Widowed3%1%5%
Separated2%2%<1%

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