Postal Codes

70734 ZIP Code

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ZIP code 70734 covers Geismar, Louisiana, with a population of about 9,880 and a median household income of $124,059.

Population
9,880356 per square mile
Median age
33.35.4 points below the US average
Median household income
$124,0592.1× the Louisiana median
Poverty rate
10%2.4 points below the US average
Typical home value
$384,188up 22.8% in five years
Degree or higher
45.9%10.9 points above the US average
Homeownership
79.6%14.6 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
267

Where 70734 is

Geismar, Louisiana — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population9,880
Median age33.3
Family households85.5%
Born outside the US5.3%
Speaks a language other than English at home8.6%
White (non-Hispanic)58.1%
Black (non-Hispanic)17%
Asian (non-Hispanic)2%
Hispanic or Latino21.3%
Veterans4.5%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$124,059
Income per person$45,141
Poverty rate10%
Households on SNAP or cash assistance7.3%

Household income distribution

Under $10k0.5%
$10–15k2.2%
$15–20k0.6%
$20–25k5.1%
$25–30k6.5%
$30–35k0.0%
$35–40k2.1%
$40–45k2.1%
$45–50k2.8%
$50–60k1.2%
$60–75k4.8%
$75–100k10.4%
$100–125k12.8%
$125–150k10.4%
$150–200k17.6%
$200k or more20.8%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed3,630
Mean adjusted gross income$98,877
Returns declaring $200,000 or more12.1%
Returns, under $25k27.0%
Returns, $25k–$50k16.5%
Returns, $50k–$75k11.6%
Returns, $75k–$100k8.8%
Returns, $100k–$200k24.0%
Returns, $200k or more12.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$306,200
Owner-occupied79.6%
Vacant homes4.9%
Median year built2006

What the homes are

Detached house77.6%
2 to 4 units0.3%
Mobile home22.1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$384,188as of 2026-07
Typical home value, 1 yearup 1.8%
Typical home value, 5 yearsup 22.8%
Typical home value, 10 yearsup 41.7%
Typical home value since 2000
200920172026$384,188$241,767

$263,493 in 2009 to $384,188 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate2.1%
Bachelor's degree or higher45.9%
High school diploma or higher89.5%
Works from home17.2%
Drives to work alone79.6%
Takes public transport0%
Commutes 45 minutes or more20.6%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity35.3% 1.9 pts above the national average of 33.4%
Diagnosed diabetes11.2% 0.8 pts below the national average of 12%
Currently smokes15% 1.8 pts above the national average of 13.2%
High blood pressure36.5% 2.4 pts above the national average of 34.1%
Fair or poor general health19.1% 1.2 pts below the national average of 20.3%
No health insurance (18–64)7.6% 3.7 pts below the national average of 11.3%
Depression26.7% 4.8 pts above the national average of 21.9%
No leisure-time physical activity24.3% 1.1 pts below the national average of 25.4%
Arthritis24.7% same as the national average of 25.1%
Binge drinking19.2% 3.2 pts above the national average of 16%
Taking blood pressure medication74.9% same as the national average of 74.7%
Cancer (non-skin)6% 1.7 pts below the national average of 7.7%
Current asthma9.7% 0.7 pts below the national average of 10.4%
Coronary heart disease4.9% 1.3 pts below the national average of 6.2%
Routine check-up in past year81.1% 4.4 pts above the national average of 76.7%
Cholesterol screening87.3% 1.4 pts above the national average of 85.9%
Cognitive disability16.2% 1.4 pts above the national average of 14.8%
Colorectal screening65.6% 1.3 pts above the national average of 64.3%
COPD5.7% 0.9 pts below the national average of 6.6%
Visited a dentist68.7% 7.4 pts above the national average of 61.3%
Any disability30.4% same as the national average of 30.7%
Lacks emotional support26.8% 2 pts above the national average of 24.8%
Food insecurity17.3% same as the national average of 17.1%
Received food stamps13.6% 0.7 pts below the national average of 14.3%
Hearing disability5.5% 1.2 pts below the national average of 6.7%
High cholesterol36.6% same as the national average of 36.2%
Housing insecurity14% same as the national average of 13.8%
Independent living disability7.9% 0.5 pts below the national average of 8.4%
Lacks transport8.9% same as the national average of 9.2%
Loneliness34.1% same as the national average of 34.4%
Mammography use82.6% 6.7 pts above the national average of 75.9%
Poor mental health (14+ days)18.4% 1.6 pts above the national average of 16.8%
Mobility disability12.3% 1.7 pts below the national average of 14%
Poor physical health (14+ days)12.6% 0.9 pts below the national average of 13.5%
Self-care disability3.7% same as the national average of 4%
Utility shut-off threat10% 1.2 pts above the national average of 8.8%
Sleeps under 7 hours38.5% 2.1 pts above the national average of 36.4%
Stroke2.9% 0.5 pts below the national average of 3.4%
All natural teeth lost10.1% 2.9 pts below the national average of 13%
Vision disability4.8% 0.8 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments267
People employed8,396
Annual payroll$919,357,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 86.1% of US census tracts
FEMA ratingRelatively Low to Very High across the 4 census tracts this ZIP code covers
Expected annual loss92.8 out of 100
Community resilience76.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Hurricane98.2Very High at its worst in this ZIP code
Coastal flooding89.9Relatively Moderate at its worst in this ZIP code
Tornado89.7Very High at its worst in this ZIP code
Drought89.2Relatively Moderate at its worst in this ZIP code
Lightning83.2Relatively High at its worst in this ZIP code
Heat wave78.1Relatively High at its worst in this ZIP code
Hail74.9Relatively Moderate at its worst in this ZIP code
Cold wave73.7Relatively High at its worst in this ZIP code
Ice storm66.8Relatively Moderate at its worst in this ZIP code
Landslide59.4Very Low at its worst in this ZIP code
Strong wind55.7Relatively Moderate at its worst in this ZIP code
River flooding54.4Relatively Moderate at its worst in this ZIP code
Wildfire51.9Very Low at its worst in this ZIP code
Winter weather34.9Relatively Low at its worst in this ZIP code
Earthquake29.6Very Low at its worst in this ZIP code
Compared with Louisiana and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPLouisianaUnited States
Median household income$124,059$60,023$78,538
Income per person$45,141$34,211$43,289
Poverty rate10%18.9%12.4%
Median home value$306,200$208,700$303,400
Median gross rent$1,038$1,348
Homeownership79.6%67.3%65%
Bachelor's degree or higher45.9%26.6%35%
Unemployment rate2.1%6.3%5.2%
Works from home17.2%7.2%13.5%
Born outside the US5.3%4.7%13.9%
Median age33.337.838.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationCARVILLE 2 SW, LA US11.6 km away
Rain in a year63 in

Average high and low by month

January61.7°F / 43.1°F5.47 in rain
February65.6°F / 46.7°F4.39 in rain
March71.9°F / 52.3°F4.42 in rain
April77.8°F / 58.7°F4.77 in rain
May84.3°F / 66.7°F5.6 in rain
June88.5°F / 72.9°F7.14 in rain
July90°F / 75°F6.28 in rain
August90.3°F / 74.7°F5.97 in rain
September87.1°F / 70.9°F4.48 in rain
October79.6°F / 60.7°F4.95 in rain
November70.4°F / 50.3°F4.06 in rain
December64°F / 45°F5.01 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Ascension Parish School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability8more vulnerable than 8% of US census tracts
Socioeconomic status14more vulnerable than 14% of US census tracts
Household characteristics15more vulnerable than 15% of US census tracts
Racial and ethnic minority status54more vulnerable than 54% of US census tracts
Housing type and transport9more vulnerable than 9% of US census tracts
Walkability5.8 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

70721 Carville, LA8.1 km away
70776 Saint Gabriel, LA8.3 km away
70737 Gonzales, LA9.2 km away
70728 Duplessis, LA10.3 km away
70725 Darrow, LA10.8 km away
70769 Prairieville, LA11.7 km away
70738 Burnside, LA12.1 km away
70346 Donaldsonville, LA13.1 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Ascension Parish100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area27.75 sq mi
Water area0.5 sq mi
Population density356 people per sq mi
Latitude, longitude30.2196, -91.0079

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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