Niles Population

1880–2026

18,065

2026 projection

2% since 2020 (decrease)

05K10K15K20K25K18801900192019401960198020002020

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.

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Population by year

Population estimates for Niles. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202618,065-510.28%
202518,116-980.54%
202418,214-360.20%
202318,250-580.32%
202218,308-910.49%
202118,399-440.24%
202018,443-640.35%
201918,507-870.47%
201818,594-760.41%
201718,670+980.53%

Showing 10 of 30 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

Niles has a population change lower than Trumbull County, Ohio, and the U.S.

  • United States+3.1%
  • Ohio+0.9%
  • Trumbull County−1.3%
  • Niles−1.6%

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.

Niles Demographics

43.2median age

Median age

Female45.5 yrs
Male38.9 yrs

Adults

15,309
4,262 seniors (65+) · 28% of adults11,047 other adults

Sex

Female 53.2% · 9,736Male 46.8% · 8,551

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 183 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

Niles Income

$50,953median household income

Median household income

$50,953

Half of households earn more, half earn less

Median earnings

$42,594

Typical yearly pay for a worker 25 or older.

Poverty rate

16.2%

About 1 in 6 residents

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

Niles Marital Status

36% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married36%39%34%
Never married40%45%35%
Divorced14%14%15%
Widowed8%1%14%
Separated2%1%2%

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