Seneca County Population 2018

Seneca County's estimated population is 34,498 with a growth rate of -0.81% in the past year according to the most recent United States census data. Seneca County is the 57th largest county in New York.

Year Population Growth Growth Rate
201734,498-283-0.81%
201634,781-30-0.09%
201534,811-79-0.23%
201434,890-346-0.98%
201335,236-111-0.31%
201235,347290.08%
201135,318540.15%
201035,2641,5814.69%
199033,683-50-0.15%
198033,733-1,350-3.85%
197035,0833,0999.69%
196031,9842,7319.34%
195029,2533,52113.68%
194025,7327493.00%
193024,9832481.00%
192024,735-2,237-8.29%
191026,972-1,142-4.06%
190028,114-113-0.40%
189028,227-1,051-3.59%
188029,2781,4555.23%
187027,823-315-1.12%
186028,1382,69710.60%
185025,4415672.28%
184024,8743,83318.22%
183021,041-2,578-10.91%
182023,6197,01042.21%
181016,6090.00%

Seneca County Population Growth

Population Data via

Seneca County Race Data

Race Population Percentage
White32,00392.77%
Black or African American1,8695.42%
Two or More Races5501.59%
Asian2670.77%
American Indian and Alaska Native1560.45%
Native Hawaiian and Other Pacific Islander30.01%

Seneca County Population Pyramid

0k1k1k2k Male Population0k1k1k2k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990