Oswego Population

1880–2026

40,948

2026 projection

17.9% since 2020 (increase)

010K20K30K40K50K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual 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 Oswego. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202640,948+1,0002.50%
202539,948+1,2103.12%
202438,738+1,6784.53%
202337,060+1,1293.14%
202235,931+5761.63%
202135,355+6171.78%
202034,738-1,4954.13%
201936,233+1,0633.02%
201835,170+3260.94%
201734,844+3751.09%

Showing 10 of 30 years.

Oswego Demographics

38.7median age

Median age

Female38.8 yrs
Male38.3 yrs

Adults

26,803
3,984 seniors · 15%22,819 other adults

Sex

Female 51.9% · 18,895Male 48.1% · 17,480

Population by age

MaleFemale85+ years, male: 11085+ years, female: 18980–84 years, male: 13780–84 years, female: 17075–79 years, male: 52175–79 years, female: 42970–74 years, male: 44370–74 years, female: 63665–69 years, male: 60865–69 years, female: 74160–64 years, male: 1,11360–64 years, female: 91055–59 years, male: 1,29455–59 years, female: 1,16550–54 years, male: 1,14450–54 years, female: 1,79845–49 years, male: 1,59045–49 years, female: 1,10840–44 years, male: 1,59740–44 years, female: 1,84235–39 years, male: 98235–39 years, female: 1,40930–34 years, male: 73430–34 years, female: 75525–29 years, male: 88825–29 years, female: 93920–24 years, male: 1,03420–24 years, female: 1,23915–19 years, male: 1,57815–19 years, female: 1,74610–14 years, male: 1,29710–14 years, female: 1,5645–9 years, male: 1,6325–9 years, female: 1,3450–4 years, male: 7780–4 years, female: 91085+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

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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 364 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

Oswego Income

$123,792median household income

Median household income

$123,792

Half of households earn more, half earn less

Median earnings

$70,621

Typical yearly pay for a worker 25 or older.

Poverty rate

2.6%

About 1 in 38 residents

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

Oswego Marital Status

55% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married55%59%52%
Never married32%31%33%
Divorced9%7%11%
Widowed3%2%5%
Separated<1%<1%<1%

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

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year