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Union, LA
Census-designated place in St. James Parish, Louisiana. ZIP codes: 70723.
Population
526
Land area
9.5sq mi
People per sq mi
55
ZIP codes
1
Union and its ZIP codes
Union at a glance
- Union is 48% less dense than Louisiana as a whole.
- The median household income is $71,563, 18% above the Louisiana median of $60,756.
Local data for Union, LA
Counts from official public data
Housing and community stats
Union, LA, American Community Survey 2020-2024
Median household income
$71,563
Poverty rate
6.1%
Homeownership
97.4%
Bachelor's or higher
15.8%
Median age
46.3
Average commute
21.7 min
Largest reported origins and ancestries: French Americans (43), German Americans (21), Irish Americans (4).
Economy and federal money
Jobs, pay, income and spending are for St. James Parish. PPP loans are for Union.
Unemployment rate
4.4%
Aug 2026, -0.7 pts in a year
Average annual pay
$80,712
7,791 jobs, 2025
Income per person
$77,150
BEA, 2024
Federal spending
$131M
FY 2026, $6,511 per person
How people get to work
Union, LA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone92.9%
- Carpooled5.4%
- Public transit0.0%
- Walked0.0%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.0%
- Worked from home1.6%
Average one-way commute: 21.7 minutes for people who do not work from home.
Environment and hazard risk
Union, LA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: hurricane
Storm events since 1996
141
Countywide, mostly thunderstorm wind
Flood insurance policies
1,023
11.3% of homes, county
July high / Jan low
91° / 42°F
63.4 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Union, LA, CDC PLACES estimates
Obesity
46.6%
U.S. 33.3% +13.3 pts
Diabetes
18.0%
U.S. 12.1% +5.9 pts
Smoking
16.0%
U.S. 12.8% +3.2 pts
Uninsured (18-64)
7.7%
U.S. 11.1% -3.4 pts
ZIP codes in Union
1 in or overlapping Union. Population shown
Cities near Union
| Name | Distance | Land area (sq mi) |
|---|---|---|
| LemannvilleCensus-designated place | 2.6 mi | 1 |
| WelcomeCensus-designated place | 3 mi | 4.5 |
| RomevilleCensus-designated place | 3.2 mi | 3.2 |
| St. JamesCensus-designated place | 5.8 mi | 8.4 |
| SorrentoTown | 6 mi | 3.6 |
| DonaldsonvilleCity | 6.3 mi | 3.8 |
| ConventCensus-designated place | 6.4 mi | 3.9 |
| DarrowCensus-designated place | 6.5 mi | 0.2 |
| HesterCensus-designated place | 8.1 mi | 3.5 |
| Grand PointCensus-designated place | 8.3 mi | 4.3 |
| GonzalesCity | 9 mi | 9.2 |
| MoonshineCensus-designated place | 9.4 mi | 0.4 |
| LutcherTown | 10 mi | 3.4 |
| PaulinaCensus-designated place | 10 mi | 4.6 |
| Belle RoseCensus-designated place | 11 mi | 5.4 |
| North VacherieCensus-designated place | 11 mi | 5.6 |
Frequently asked questions
- What county is Union, LA in?
- Union is in St. James Parish, Louisiana.
- What ZIP codes are in Union, LA?
- ZIP codes in or overlapping Union include 70723.
- What is the population of Union, LA?
- About 526 people live in Union, based on American Community Survey 5-year estimates.
- What cities are near Union?
- Nearby places include Lemannville (2.6 mi), Welcome (3 mi), Romeville (3.2 mi), St. James (5.8 mi), Sorrento (6 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023