Census tract · Jefferson County
Census Tract 621, Jefferson County, New York
Census Tract 621, GEOID 36045062100, in Jefferson County, New York, entirely within Watertown. 3,611 residents in the ACS 2020-2024 5-year estimates (±509); the 2020 Census counted 3,818.
Residents, 2020-2024
3,611
±509 (90% margin)
2020 Census count: 3,818
Median household income
$48,954
±$17,854 (90% margin)
Jefferson County: $66,301
Median home value
$143,400
±$49,422 (90% margin)
Jefferson County: $188,200
Median gross rent
$915
±$89 (90% margin)
Jefferson County: $1,213
Where is Census Tract 621?
Census Tract 621 is one of 36 census tracts in Jefferson County, New York. It covers 0.66 square miles of land, 5,820 residents per square mile in 2020. Its GEOID, 36045062100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Watertown | 100% |
6 census tracts border Census Tract 621: Tract 612 ($46,354), Tract 613 ($47,844), Tract 614 ($48,290), Tract 615 ($49,974), Tract 619 ($80,000) and Tract 622 ($71,174). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 621?
The 2020-2024 American Community Survey puts Census Tract 621's population at 3,611 (±509) in 2,287 households; the 2020 Census counted 3,818 residents and 2,504 housing units.
| Measure | Tract 621 | Watertown |
|---|---|---|
| Total population | 3,611 ±509 | 24,375 |
| Households | 2,287 ±344 | 11,867 |
| Average household size | 1.54 ±0.15 | 1.98 |
| Housing units | 2,705 ±337 | 13,426 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 621?
The median resident of Census Tract 621 is 31.4 years old; 13.7% are under 18 and 9.5% are 65 or older. The largest group is non-Hispanic white residents at 77.8%, then Hispanic or Latino residents (of any race) at 12.0%. 13.3% of residents were born outside the United States.
| Measure | Tract 621 | Watertown |
|---|---|---|
| Median age | 31.4 ±1.4 | 35.7 |
| Under 18 years | 13.7% ±5.1 pts | 21.5% |
| 65 years and over | 9.5% ±2.2 pts | 16.0% |
| Hispanic or Latino (any race) | 12.0% ±7.6 pts | 7.1% |
| White alone, not Hispanic | 77.8% ±10.2 pts | 78.3% |
| Black or African American alone, not Hispanic | 3.0% ±2.6 pts | 4.5% |
| Asian alone, not Hispanic | 2.9% ±3.2 pts | 2.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.2 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.2 pts | 0.0% |
| Two or more races, not Hispanic | 4.3% ±5.8 pts | 7.8% |
| Some other race alone, not Hispanic | 0.0% ±1.2 pts | 0.2% |
| Born outside the United States | 13.3% ±7.3 pts | 4.9% |
| Speak a language other than English at home (age 5+) | 8.4% ±5.9 pts | 6.8% |
| Civilian veterans (age 18+) | 13.7% ±7.5 pts | 11.6% |
| With a disability | 27.4% ±7.7 pts | 19.4% |
| No health insurance coverage | 8.9% ±5.9 pts | 6.6% |
| High school graduate or higher (age 25+) | 89.9% ±4.9 pts | 91.3% |
| Bachelor's degree or higher (age 25+) | 24.3% ±8.3 pts | 26.6% |
| Graduate or professional degree (age 25+) | 7.8% ±6.9 pts | 11.2% |
| Lived in the same house a year earlier | 75.4% ±11.8 pts | 79.3% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 621 earn?
Half of the 2,287 households in Census Tract 621 earn less than $48,954 a year (±$17,854), against $66,301 across Jefferson County: 31st highest of the county's 34 tracts with a reliable estimate. 17.5% of residents live below the poverty line.
| Measure | Tract 621 | Watertown |
|---|---|---|
| Median household income | $48,954 ±$17,854 | $51,753 |
| Mean household income | $58,974 ±$15,386 | $70,891 |
| Per capita income | $37,677 ±$10,196 | $33,731 |
| People below the poverty line | 17.5% ±7.7 pts | 20.1% |
| Children under 18 below the poverty line | 9.9% ±14.8 pts | 30.6% |
| Households receiving SNAP | 40.8% ±12.5 pts | 27.7% |
| Households with a computer | 95.1% ±4.0 pts | 92.7% |
| Households with a broadband subscription | 92.2% ±4.2 pts | 88.3% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 621?
Owners occupy 12.4% of Census Tract 621's occupied homes and renters 87.6%. The median owner-occupied home is valued at $143,400 by its owner (±$49,422). The median renter pays $915 a month including utilities, and 42.8% of renters pay 35% or more of their income on rent.
| Measure | Tract 621 | Watertown |
|---|---|---|
| Median home value (owner-occupied) | $143,400 ±$49,422 | $158,600 |
| Median gross rent | $915 ±$89 | $967 |
| Renters paying 35% or more of income on rent | 42.8% ±13.6 pts | 35.2% |
| Median monthly owner costs, with a mortgage | $1,699 ±$533 | $1,352 |
| Owner-occupied homes | 12.4% ±5.5 pts | 40.9% |
| Renter-occupied homes | 87.6% ±5.5 pts | 59.1% |
| Housing units | 2,705 ±337 | 13,426 |
| Single-family detached homes | 15.0% ±6.0 pts | 43.5% |
| Mobile homes | 0.0% ±1.6 pts | 0.7% |
| Built 2020 or later | 0.0% ±1.6 pts | 0.0% |
| Built 2010 to 2019 | 6.3% ±5.2 pts | 3.4% |
| Built 1939 or earlier | 43.0% ±10.7 pts | 44.0% |
| Households with no vehicle | 25.9% ±10.6 pts | 19.8% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 621 get to work?
79.1% of Census Tract 621's workers drive alone. The average trip to work takes 13.3 minutes.
| Measure | Tract 621 | Watertown |
|---|---|---|
| In the labor force (age 16+) | 79.9% ±5.7 pts | 64.2% |
| Unemployment rate | 8.5% ±7.7 pts | 5.3% |
| Drove alone to work | 79.1% ±10.8 pts | 79.2% |
| Carpooled | 5.1% ±6.5 pts | 7.3% |
| Public transportation | 0.0% ±1.9 pts | 0.9% |
| Walked | 15.7% ±7.7 pts | 5.7% |
| Worked from home | 0.0% ±1.9 pts | 4.5% |
| Mean travel time to work | 13.3 min ±2.7 | 16.3 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 621 compare with the other tracts in Jefferson County?
Among Jefferson County's tracts with a reliable estimate, Census Tract 621 ranks as shown below (1 = highest).
| Measure | In Jefferson County | In Watertown |
|---|---|---|
| Population | 11th of 35 | 2nd of 7 |
| Residents per square mile | 1st of 35 | 1st of 7 |
| Median household income | 31st of 34 | 4th of 7 |
| Per capita income | 15th of 35 | 3rd of 7 |
| Median home value | 27th of 32 | 3rd of 7 |
| Median gross rent | 25th of 34 | 4th of 7 |
| Poverty rate | 8th of 30 | 5th of 7 |
| Bachelor's degree or higher | 19th of 34 | 4th of 7 |
| Median age | 28th of 35 | 7th of 7 |
| Owner-occupied share | 32nd of 32 | 7th of 7 |
The tracts next to it on Jefferson County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 608.03 | 28th | $51,091±$18,987 · within the margin of this tract |
| Tract 606.02 | 29th | $50,661±$8,373 · within the margin of this tract |
| Tract 615 | 30th | $49,974±$8,262 · within the margin of this tract |
| Tract 621 | 31st | $48,954±$17,854 |
| Tract 614 | 32nd | $48,290±$12,865 · within the margin of this tract |
| Tract 613 | 33rd | $47,844±$18,343 · within the margin of this tract |
| Tract 612 | 34th | $46,354±$25,775 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 621?
3 of the 18 figures for Census Tract 621 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections