Union is a community in St. James Parish, Louisiana, home to about 526 people across 9.6 square miles. It has no ZIP code of its own: it’s part of 70723.
Mostly Convent; part is in Union
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| Nearest major airport | Louis Armstrong New Orleans International Airport (MSY)34 miles away |
|---|---|
| Nearest city of 250,000+ | New Orleans, LA54 miles away |
| Nearest city of 1 million+ | Houston, TX273 miles away |
Straight-line distances from the center of Union; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Union had 735 residents in the 2020 census, down 18% since 2010.
It’s the 350th largest of 487 towns in Louisiana by population.
St. James Parish grew from 20,197 residents in 1900 to 20,192 in 2020.
St. James Parish, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 91°F in summer, and winter lows average 42°F. About 63.5 inches of rain and melted snow fall in a typical year, with about 0 inches of snow.
Source: NOAA 1991–2020 climate normals, Donaldsonville 4 Sw, LA weather station (12 miles away).
6,480 jobs at 339 businesses in St. James Parish. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Union.
Nearest hospitals
Providers with an office here
| Mental health providers | 1 |
|---|
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (1 nearby)
Museums
Counts are within about 2 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Shares ZIP codes with Convent and Romeville.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.