Plattsburgh Population

1860–2026

19,710

2026 projection

0.7% since 2020 (decrease)

05K10K15K20K25K186018801900192019401960198020002020

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 Plattsburgh. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202619,710-340.17%
202519,744+550.28%
202419,689-290.15%
202319,718-1550.78%
202219,873-680.34%
202119,941+1000.50%
202019,841+490.25%
201919,792-1880.94%
201819,980+1250.63%
201719,855+1180.60%

Showing 10 of 32 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

Plattsburgh has a population change higher than Clinton County, about the same as New York, and lower than the U.S.

  • United States+3.1%
  • Plattsburgh−0.4%
  • New York−0.6%
  • Clinton County−2.0%

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.

Plattsburgh Demographics

31.9median age

Median age

Female29.9 yrs
Male34.3 yrs

Adults

17,216
3,403 seniors (65+) · 20% of adults13,813 other adults

Sex

Female 52.7% · 10,456Male 47.3% · 9,374

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 198 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

Plattsburgh Income

$57,630median household income

Median household income

$57,630

Half of households earn more, half earn less

Median earnings

$49,940

Typical yearly pay for a worker 25 or older.

Poverty rate

22.7%

About 1 in 4 residents

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

Plattsburgh Marital Status

30% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married30%32%28%
Never married51%50%52%
Divorced11%12%11%
Widowed5%2%8%
Separated3%4%1%

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