St. John the Baptist Parish Population

1810–2026

39,785

2026 projection

6.1% since 2020 (decrease)

010K20K30K40K50K1850190019502000

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 St. John the Baptist Parish. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202639,785-900.23%
202539,875-900.23%
202439,965+1470.37%
202339,818-2100.52%
202240,028-2,0914.96%
202142,119-2430.57%
202042,362-4621.08%
201942,824-3160.73%
201843,140-2160.50%
201743,356-850.20%

Showing 10 of 36 years.

St. John the Baptist Parish Demographics

40.1median age

Median age

Female41.9 yrs
Male37.7 yrs

Adults

30,944
6,388 seniors (65+) · 21% of adults24,556 other adults

Sex

Female 50.7% · 20,671Male 49.3% · 20,072

Population by age

MaleFemale85+ years, male: 27985+ years, female: 28380–84 years, male: 23080–84 years, female: 32875–79 years, male: 43175–79 years, female: 69870–74 years, male: 93970–74 years, female: 81965–69 years, male: 1,18465–69 years, female: 1,19760–64 years, male: 1,38060–64 years, female: 1,45655–59 years, male: 1,35355–59 years, female: 1,58450–54 years, male: 1,11150–54 years, female: 1,35145–49 years, male: 1,13845–49 years, female: 1,34140–44 years, male: 1,68340–44 years, female: 1,64035–39 years, male: 81635–39 years, female: 1,08530–34 years, male: 1,17030–34 years, female: 1,28525–29 years, male: 1,34425–29 years, female: 1,24420–24 years, male: 1,40220–24 years, female: 1,38115–19 years, male: 1,45015–19 years, female: 1,39410–14 years, male: 1,63810–14 years, female: 1,2955–9 years, male: 1,2895–9 years, female: 1,1320–4 years, male: 1,2350–4 years, female: 1,15885+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

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 407 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

St. John the Baptist Parish Income

$66,630median household income

Median household income

$66,630

Half of households earn more, half earn less

Median earnings

$40,645

Typical yearly pay for a worker 25 or older.

Poverty rate

14.4%

About 1 in 7 residents

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

St. John the Baptist Parish Marital Status

41% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married41%42%40%
Never married37%42%33%
Divorced12%10%13%
Widowed7%4%9%
Separated3%2%5%

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

Sources

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

Population

American Community Survey, 2024 5-year