Marengo Population

2010–2026

285

2026 projection

0.7% since 2020 (increase)

050100150200250300350201020122014201620182020202220242026

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 Marengo. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202628500.00%
2025285+31.06%
2024282+10.36%
202328100.00%
2022281+10.36%
2021280-31.06%
2020283-10.35%
2019284-62.07%
2018290-31.02%
2017293-72.33%

Showing 10 of 17 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

Marengo is growing faster than Ohio, and slower than Morrow County and the U.S.

  • Morrow County+3.7%
  • United States+3.1%
  • Marengo+1.8%
  • Ohio+0.9%

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.

Marengo Demographics

32.3median age

Median age

Female32.4 yrs
Male32.3 yrs

Adults

178
37 seniors (65+) · 21% of adults141 other adults

Sex

Female 48.6% · 107Male 51.4% · 113

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 2 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

Marengo Income

$68,750median household income

Median household income

$68,750

Half of households earn more, half earn less

Median earnings

$36,667

Typical yearly pay for a worker 25 or older.

Poverty rate

20.9%

About 1 in 5 residents

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

Marengo 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%63%49%
Never married32%33%31%
Divorced7%1%12%
Widowed5%2%8%
Separated0%0%0%

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