Portage Population

1850–2026

9,799

2026 projection

7.4% since 2020 (decrease)

02K4K6K8K10K12K186018801900192019401960198020002020

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 Portage. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20269,799-1571.58%
20259,956-30.03%
20249,959+650.66%
20239,894-4154.03%
202210,309-1431.37%
202110,452-1291.22%
202010,581+20.02%
201910,579-100.09%
201810,589-360.34%
201710,625+1451.38%

Showing 10 of 33 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

Portage has a population change lower than Columbia County, Wisconsin, and the U.S.

  • United States+3.1%
  • Wisconsin+1.3%
  • Columbia County−0.7%
  • Portage−5.9%

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.

Portage Demographics

37.8median age

Median age

Female41.2 yrs
Male37.2 yrs

Adults

8,276
1,520 seniors (65+) · 18% of adults6,756 other adults

Sex

Female 45.6% · 4,663Male 54.4% · 5,573

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 102 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

Portage Income

$64,722median household income

Median household income

$64,722

Half of households earn more, half earn less

Median earnings

$48,207

Typical yearly pay for a worker 25 or older.

Poverty rate

13.5%

About 1 in 7 residents

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

Portage Marital Status

37% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married37%35%39%
Never married40%48%30%
Divorced14%13%16%
Widowed8%4%12%
Separated2%<1%3%

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