Waterloo Flag

Waterloo

County:
Seneca County
County Seat:
Yes
Area (mi²):
2.157
State:
New York

Waterloo is a village located in Seneca County, New York. Waterloo has a 2026 population of 4,657. It is also the county seat of Seneca County. Waterloo is currently declining at a rate of -0.68% annually and its population has decreased by -4% since the most recent census, which recorded a population of 4,851 in 2020.

The median household income in Waterloo is $51,642 with a poverty rate of 11.68%. The median age in Waterloo is 50.8 years: 47.5 years for males, and 53.5 years for females. For every 100 females there are 101.1 males.

4.7K
Total Population
2,159
Density (mi²)
-32 -0.68%
Growth

Waterloo Population

Waterloo Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20264,657-32-0.68%
20254,689-33-0.7%
20244,72280.17%
20234,714-10-0.21%
20224,724-59-1.23%
20214,783-68-1.4%
20204,851-22-0.45%
20194,892-14-0.29%
20184,906-13-0.26%
20174,919-60-1.21%
20164,979-52-1.03%
20155,031-14-0.28%
20145,045-49-0.96%
20135,094-35-0.68%
20125,129-22-0.43%
20115,15130.06%
20105,148-23-0.44%
20005,111-5-0.1%
19905,116-187-3.53%
19805,303-115-2.12%
19705,4183206.28%
19605,09866014.87%
19504,43842810.67%
19404,010-37-0.91%
19304,0472386.25%
19203,809-122-3.1%
19103,931-325-7.64%
19004,256-94-2.16%
18904,35045711.74%
18803,893-193-4.72%
18704,08671121.07%
18603,37500%

Median Age

Overall: 50.8 years
Female: 53.5 years
Male: 47.5 years

Waterloo Adults

There are 3,829 adults, (1,352 of whom are seniors) in Waterloo.

Sex Ratio

Female: 2,290 (49.7%)
Male: 2,315 (50.3%)

Demographics

The racial composition of Waterloo includes 86.04% White, and smaller percentages for Black or African American, other race, Asian and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White3,96286.04%
Two or more races4489.73%
Black or African American1242.69%
Other race611.32%
Asian100.22%
Race
Population ↓
Percentage (of total)
Two or more races1854.02%
White721.56%
Other race380.83%
Race
Population ↓
Percentage (of total)
White3,89084.47%
Two or more races2635.71%
Black or African American1242.69%
Other race230.5%
Asian100.22%

Waterloo Marital Status

Economics and Income Statistics

Waterloo 's average per capita income is $49,441. Household income levels show a median of $51,642. The poverty rate stands at 11.68%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$95,528-
Families$78,688$87,778
Households$51,642$68,192
Non Families$42,964$50,243

$49,441

Average Income

$51,642

Median Household Income

11.68%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)