Tompkins County Population

1820–2026

103.7K

2026 projection

1.7% since 2020 (decrease)

020K40K60K80K100K120K1850190019502000

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 Tompkins County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026103,700-3470.33%
2025104,047-3470.33%
2024104,394-590.06%
2023104,453+2760.26%
2022104,177+1,6101.57%
2021102,567-2,9412.79%
2020105,508+3,5373.47%
2019101,971-4110.40%
2018102,382-3490.34%
2017102,731-3110.30%

Showing 10 of 35 years.

Tompkins County Demographics

32.3median age

Median age

Female33.6 yrs
Male30.8 yrs

Adults

89,792
16,994 seniors (65+) · 19% of adults72,798 other adults

Sex

Female 51.3% · 53,644Male 48.7% · 50,893

Population by age

MaleFemale85+ years, male: 64785+ years, female: 1,03680–84 years, male: 87680–84 years, female: 1,19275–79 years, male: 1,44975–79 years, female: 1,69470–74 years, male: 2,14570–74 years, female: 2,27165–69 years, male: 2,66665–69 years, female: 3,01860–64 years, male: 2,62460–64 years, female: 3,23755–59 years, male: 2,63555–59 years, female: 2,50250–54 years, male: 2,37750–54 years, female: 2,49145–49 years, male: 2,37545–49 years, female: 2,67140–44 years, male: 2,66940–44 years, female: 3,04335–39 years, male: 2,73235–39 years, female: 2,92030–34 years, male: 2,71630–34 years, female: 2,79425–29 years, male: 3,37825–29 years, female: 3,03720–24 years, male: 8,35920–24 years, female: 7,72515–19 years, male: 7,10715–19 years, female: 8,25010–14 years, male: 2,12810–14 years, female: 1,9765–9 years, male: 2,0825–9 years, female: 2,1250–4 years, male: 1,9280–4 years, female: 1,66285+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K6K6K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

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 1,045 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

Tompkins County Income

$74,024median household income

Median household income

$74,024

Half of households earn more, half earn less

Median earnings

$54,591

Typical yearly pay for a worker 25 or older.

Poverty rate

16.4%

About 1 in 6 residents

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

Tompkins County Marital Status

38% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married38%39%38%
Never married49%52%46%
Divorced8%6%9%
Widowed4%1%6%
Separated1%1%2%

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

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year