Zachary, Louisiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Zachary, Louisiana is 19,637 as of the 2023 American Community Survey, making it the 25th-largest city in Louisiana. The median household income is $90,507, the median home value is $258,000, and the median age is 34.2.
The population has grown 34.0% since 2010 (15,204 → 20,370).
19,637
Population
731
People / sq mi
$90,507
Median Income
$258,000
Median Home Value
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Zachary covers 26.9 sq mi of land at 731 people per square mile.
About Zachary, LA
What distinguishes Zachary is density: among the most sparsely settled of US cities, around 731 people per square mile. Zachary is a city in Louisiana with a population of 19,637. It ranks #25 among cities in Louisiana by population.
Median household income is $90,507, above the US median of $78,538. About 5.0% of residents live below the federal poverty level, below the national 12.4%. Homes carry a median value of $258,000, with typical rent around $1,440.
38.5% of adults 25 and older hold a bachelor’s degree, above the national average of 35.0%. Remote work is rare here (4.1%, below the national 14.0%), and the average commute runs about 27 minutes each way.
Zachary city Population History (2010-2024)
The city of Zachary city had a population of 15,204 in 2010 and 20,370 in 2024, a 34.0% growth over 14 years. The peak was 20,370 in 2024. Average annual growth rate: 2.13%.
20,370
Population (2024)
15,204
Population (2010)
20,370
Peak (2024)
2.13%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 15,204 |
| 2011 | 15,487 |
| 2012 | 15,695 |
| 2013 | 16,091 |
| 2014 | 16,409 |
| 2015 | 16,634 |
| 2016 | 16,986 |
| 2017 | 17,272 |
| 2018 | 17,571 |
| 2019 | 17,949 |
| 2020 | 19,486 |
| 2021 | 19,830 |
| 2022 | 19,963 |
| 2023 | 20,114 |
| 2024 | 20,370 |
Race & Ethnicity
| White | 48.3% |
| Black or African American | 47.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Economy & Income
$90,507
Median Household Income
$43,542
Per Capita Income
5.0%
Poverty Rate
5.1%
Unemployment Rate
Housing
$258,000
Median Home Value
$1,440
Median Rent
82.6%
Owner-Occupied
Education
94.5%
High School+
38.5%
Bachelor's+
Commute
0.0%
Drive Alone
90.7%
Public Transit
4.1%
Work From Home
27.0 min
Avg Commute
Community Profile
14.5%
Foreign Born
95.5%
Non-English at Home
6.8%
Veterans
10.1%
With Disability
96.7%
Health Insurance
95.5%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 23.8% |
| Manufacturing | 17.6% |
| Public Administration | 11.3% |
| Finance, Insurance & Real Estate | 7.0% |
| Retail Trade | 6.8% |
| Education, Health Care & Social Services | 6.7% |
| Construction | 6.4% |
| Information | 6.4% |
| Arts, Entertainment & Food Services | 3.9% |
| Transportation & Warehousing | 0.5% |
| Agriculture & Mining | 0.3% |
Largest cities in Louisiana
Largest counties in Louisiana
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City rankings
Frequently Asked Questions
Zachary, Louisiana has a population of 19,637 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 25th-largest city in Louisiana.
The median household income in Zachary, Louisiana is $90,507, with 5.0% of residents living below the federal poverty level.
The median home value in Zachary, Louisiana is $258,000, with median monthly rent at $1,440 and a homeownership rate of 82.6%.
The median age in Zachary, Louisiana is 34.2 years. The population is 56.3% male and 43.7% female.
The population has grown 34.0% since 2010 (15,204 → 20,370).
Zachary city, LA Climate
Zachary city, LA has an average annual temperature of 19.2°C (67°F) and receives about 1598 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
19.2°C
Avg Temp
1598
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 10° / 49° | 150 mm |
| February | 12° / 53° | 137 mm |
| March | 16° / 60° | 136 mm |
| April | 19° / 66° | 138 mm |
| May | 23° / 74° | 135 mm |
| June | 26° / 79° | 124 mm |
| July | 28° / 82° | 152 mm |
| August | 27° / 81° | 145 mm |
| September | 25° / 77° | 124 mm |
| October | 20° / 67° | 97 mm |
| November | 15° / 58° | 115 mm |
| December | 11° / 52° | 145 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Zachary city, LA
The most comfortable months to visit Zachary city, LA are typically October, April and May, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 33°C high). The coldest is January (near 4°C low). July is usually the wettest month.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.