No town among the 162 in Louisiana we compare has a higher home-ownership rate than Union. Chauvin House is on the National Register of Historic Places. Union has fewer than 1,000 residents, too few for fair grades; the figures below are still real.

What makes Union stand out

Where Union beats most towns.

Jobs vs. working residents

Jobs here414

Residents who work237

Work

A regional job hub: more jobs per worker than 90% of U.S. towns

Census LEHD 2023.

Small town

526 people, and everyone knows the way

In a town this size, neighbors are the best guide. Ask them anything.

Nearby towns

Donaldsonville · 6 mi Sorrento · 7 mi Gonzales · 9 mi Lutcher · 11 mi Gramercy · 12 mi Napoleonville · 13 mi

WelcomeLemannvilleUnion

Chauvin House · National Register of Historic Places

Union’s story

137 years in pictures

1 place on the National Register of Historic Places.

1889Union is settled

Explore the history →

Getting set up

Moving to Union: who provides what

Union is unincorporated, so St. James Parish and regional agencies provide most services.

Internet4 providers98% of addresses get 100/20 MbpsFCC

Trash & county servicesSt. James ParishSt. James Parish provides services here

SchoolsSt. James Parish School DistrictWhich school depends on your addressNCES

Register to voteOnlineIn Louisiana you can register online until 20 days before Election Day, in person until 30 days before Election Day, or by mail (postmarked 30 days before).vote.gov

Who runs elections hereSt James Parish Registrar of VotersSt. James Parish; contacts on the Handbook page.FVAP, Aug 2021

ZIP code7072370723 100%Census 2020

EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Aug 3, 2026.

The data

Ordered by what stands out in Union.

Work & commute

A job hub: Union has 1.7 jobs for every working resident and draws in 410 commuters

Among residents in Union, 6.1% live below the poverty line, below both the Louisiana town median (20%) and the median of U.S. towns (9.6%). Commuting out is the norm in the town: 2% of working residents work locally. Employers in Union shed 981 jobs between 2013 and 2023, to 414. Half the trips to work are shorter than 19 miles.

2%work in town

	Union	Louisiana towns	U.S. towns
Below the poverty line	6.1%	20%	9.6%
Working residents who work in town	1.7%	9.8%	8%
Average trip to work	22 minutes	25 minutes	25 minutes

Where working residents work

In Union2%

Lutcher9%

Gonzales8%

Baton Rouge5%

Convent5%

19 mi

median commute distance

414

jobs based in Union

A job hub

jobs vs. working residents

Full pageUnion’s work & commute pageOpen the page

The jobs here414 jobs based here · A job hub Where people work2% work in Union Commute times22 minutes · The average commute How far they goHalf commute less than 19 miles

Census LEHD 2023 · ACS

Natural hazards

Very high risk in Union, with hurricanes at the top

On expected storm and flood damage, Union sits above 90% of U.S. communities. Expected losses in Union break down as 61% from hurricanes and 13% from drought.

90risk score of 100

FEMA risk score

HurricanesDroughtInland flooding

Full pageUnion’s hazards pageOpen the page

What it facesVery high risk Flood claims0 paid flood claims · No paid flood claims on record Past disasters31 disaster declarations · Declared for the county Get ready0.3 events a year, on average · Ready for hurricanes

FEMA National Risk Index · OpenFEMA

Climate

Expect mild winters and hot summers in Union

July afternoons reach 92°, January nights drop to 42° and snow is almost unheard of.

92°summer high

Typical low → high °F

Winter44–65°

Spring58–79°

Summer73–91°

Fall59–80°

Dec 5

typical first frost

Feb 21

typical last frost

+0.9°

vs. the 20th-century average

92°

typical summer high

Full pageUnion’s climate pageOpen the page

A year of weatherJuly highs 92°, January lows 42°Rain & snow64″ of rain a year · Snow is almost unheard of Heating & coolingBoth heating and cooling Then and now+0.9° vs. the 20th century · Warmer than the 20th-century average

NOAA U.S. Climate Normals, 1991–2020

Health

A larger share of adults in Union had a checkup this year than in the typical Louisiana or U.S. town

Among adults in Union, 33% get no exercise outside work, where Louisiana’s towns sit at 34% and U.S. towns at 25%. 49% of adults have high blood pressure in the town. Only one of the 162 Louisiana towns we compare has a lower share of adults who have been diagnosed with depression than Union. In Union, 46% of adults sleep under 7 hours, and 18% have diabetes.