Willoughby Population

1840–2026

24,309

2026 projection

1.5% since 2020 (increase)

05K10K15K20K25K1840186018801900192019401960198020002020

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 Willoughby. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202624,309+750.31%
202524,234+410.17%
202424,193+360.15%
202324,157+700.29%
202224,087+2661.12%
202123,821-1380.58%
202023,959+1150.48%
201923,844+1050.44%
201823,739+1530.65%
201723,586+1170.50%

Showing 10 of 33 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

Willoughby is growing faster than Lake County and Ohio, and slower than the U.S.

  • United States+3.1%
  • Willoughby+1.4%
  • Ohio+0.9%
  • Lake County−0.1%

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.

Willoughby Demographics

45.6median age

Median age

Female47.9 yrs
Male42.7 yrs

Adults

20,135
5,873 seniors (65+) · 29% of adults14,262 other adults

Sex

Female 53.4% · 12,850Male 46.6% · 11,196

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 240 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

Willoughby Income

$71,309median household income

Median household income

$71,309

Half of households earn more, half earn less

Median earnings

$52,582

Typical yearly pay for a worker 25 or older.

Poverty rate

9.5%

About 1 in 11 residents

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

Willoughby 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%49%39%
Never married36%39%34%
Divorced13%8%17%
Widowed7%3%11%
Separated<1%<1%<1%

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