• county
  • FIPS 36109
  • Largest town: Ithaca

Tompkins County, New York

Tompkins County had 105,602 residents in the Census Vintage 2024 estimate, on 474.6 square miles of land. It ranks 28th of 62 in New York by population and 46th by land area.

Population
105,602
#28 of 62 in New York · #595 in US
Area
474.6 sq mi
#46 of 62 in New York · #2,170 in US
Density
222 / sq mi
#22 of 62 in New York · #531 in US
Median household income
$68,222
#33 of 62 in New York · #1,120 in US

Census Vintage 2024 estimates · SAIPE 2023 income · 2024 Gazetteer land area

Tompkins County within New York. Pin: Albany.

Measure from here

Tools and pages that start from Tompkins County

Tompkins County population, land area and income

Tompkins County had 105,602 residents in the Census Vintage 2024 estimate, on 474.6 square miles of land. It ranks 28th of 62 in New York by population and 46th by land area. That works out to 222.5 people per square mile, 2.3 times the US average of 96.3, and in the top quarter nationally.

The median county-equivalent in New York has 85,936 residents; Tompkins County is somewhat larger.

Its SAIPE 2023 median household income of $68,222 is above the national county median among 3,143 counties with an estimate.

National rank among 3,144

Population

105,602

3144th1st

595th of 3,144 (US)

Land area

475 sq mi

3144th1st

2170th of 3,144 (US)

Density

222.5 / sq mi

3144th1st

531st of 3,144 (US)

Median household income

$68,222

3143rd1st

1120th of 3,143 (US)

Rank within New York (62)

Population

105,602

62nd1st

28th of 62 (NY)

Land area

475 sq mi

62nd1st

46th of 62 (NY)

Density

222.5 / sq mi

62nd1st

22nd of 62 (NY)

Median household income

$68,222

62nd1st

33rd of 62 (NY)

How Tompkins County's population changed since 2020

Tompkins County gained 5,824 residents between the July 2020 and July 2024 estimates, a rise of 5.8%. That ranks 1st of 62 in New York for growth. The median New York county changed by -0.8%, and the state as a whole by -1.2%.

Since the April 2020 estimates base, Tompkins County recorded 2,776 births and 3,086 deaths, a natural change of -310. Net international migration added +3,858 and net domestic migration, people moving to or from other US counties, came to -1,945. The largest single component was international migration, which added 3,858 people.

99.8k2020106.0k2021105.8k2022105.5k2023105.6k2024
Census Vintage 2024 county estimates for July 1 of each year. The axis starts above zero so year-to-year changes are visible.

Components of change, April 2020 to July 2024

Births
2,776
Deaths
3,086
Net international migration
+3,858
Net domestic migration
-1,945
Change, July 2023 to July 2024
+97

Where Tompkins County is

The Census internal point of Tompkins County is at 42.453000, -76.473500. It sits in UTM zone 18N. The map shades New York's 62 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Tompkins County outlined. Dots are towns of 1,000+ people with residents in it.

Tompkins County: +5.8%Yates County: -1.3%Suffolk County: +0.9%Broome County: -0.9%Cortland County: -1.7%Fulton County: -2.0%Ulster County: +0.9%Rockland County: +3.2%Essex County: -1.5%Westchester County: +0.5%Niagara County: -1.2%Dutchess County: +1.4%Seneca County: -2.6%Onondaga County: -0.9%Tioga County: -1.6%Erie County: -0.2%Wayne County: -0.5%Delaware County: -0.1%Greene County: -1.8%Schenectady County: +1.9%Allegany County: -0.1%Rensselaer County: -0.1%Monroe County: -0.7%Warren County: -0.5%Livingston County: -0.1%Madison County: -1.3%Jefferson County: -2.5%Sullivan County: +2.5%Lewis County: +0.0%Oswego County: +0.7%Putnam County: +0.8%New York County: -1.1%Columbia County: -1.8%St. Lawrence County: -2.0%Schuyler County: -4.1%Franklin County: -0.3%Steuben County: -1.4%Cayuga County: -2.1%Oneida County: -1.2%Chemung County: -3.1%Herkimer County: -0.7%Schoharie County: +1.3%Cattaraugus County: -2.0%Chautauqua County: -2.6%Chenango County: -2.8%Hamilton County: +0.2%Orange County: +2.7%Washington County: -2.1%Ontario County: +0.6%Bronx County: -5.1%Wyoming County: -1.5%Clinton County: -2.3%Orleans County: -1.0%Montgomery County: +0.3%Nassau County: +0.1%Kings County: -3.6%Genesee County: -1.2%Otsego County: +3.7%Albany County: +1.9%Queens County: -3.1%Richmond County: +0.6%Saratoga County: +1.9%
Change 2020 to 2024
  1. < -2.0%
  2. < -1.2%
  3. < -0.2%
  4. < +0.7%
  5. ≥ +0.7%
no data

Orange pin: Tompkins County internal point. Dark pin: Albany.

Internal point

Decimal
42.453000, -76.473500
DMS
42°27'10.80"N 76°28'24.60"W
UTM
18N 378836.4E 4701126.0N
Geohash
dr99eb3dw
Plus code
87J5FG3G+6J

Towns in Tompkins County

6 incorporated places of 1,000+ people have residents in Tompkins County, 47,401 people together, or 45% of the county. Each figure counts only the part of the town inside Tompkins County; towns marked "part" extend into another county. The largest is Ithaca with 33,768.

  1. 01Ithaca33,768
  2. 02Cayuga Heights3,949
  3. 03Lansing3,893
  4. 04Groton2,127
  5. 05Dryden1,877
  6. 06Trumansburg1,787
Census Vintage 2024 subcounty estimates, county parts of incorporated places (SUMLEV 157).

Counties bordering Tompkins County

The Census 2024 county adjacency file lists 6 neighbors for Tompkins County. The most populous is Chemung County, NY, with 81,115 residents. Distances run between Census internal points in a straight line.

Distance to Albany and the nearest big city

Albany is 138.9 miles E of Tompkins County's internal point in a straight line. The nearest place of 100,000 or more is Syracuse, NY (population 146,097), 43.9 miles away. The nearest place of 10,000 or more is Ithaca, NY (population 33,768), 1.6 miles away.

Tompkins County FIPS code

The FIPS code of Tompkins County is 36109: state code 36 for New York plus county code 109. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $68,222.

Questions people ask

What is the population of Tompkins County, New York?

The Census Vintage 2024 estimate for July 1, 2024 is 105,602. That is up 5,824 people (5.8%) from the July 2020 estimate of 99,778.

What is the FIPS code of Tompkins County?

36109. The first two digits (36) are New York; the last three (109) identify the county.

What is the largest town in Tompkins County?

Ithaca, with 33,768 residents inside Tompkins County in 2024.

Which counties border Tompkins County?

6 county-equivalents border it in the Census 2024 adjacency file: Chemung County, NY; Cayuga County, NY; Tioga County, NY; Cortland County, NY; Seneca County, NY; Schuyler County, NY.

Sources and data as of

Data as of: Census Vintage 2024 population estimates, 2024 Gazetteer land area and internal points, SAIPE 2023 median household income.

  1. 01Census Vintage 2024 county population estimates
  2. 02Census 2024 Gazetteer, counties
  3. 03Census SAIPE 2023 state and county estimates
  4. 04Census Vintage 2024 subcounty population estimates
  5. 05Census 2024 county adjacency file
  6. 06Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.