70346 ZIP Code — Donaldsonville, LA

Ascension County, Louisiana

ZIP code 70346 is located in Donaldsonville, Louisiana, within Ascension County. It covers approximately 64.92 square miles and serves a population of 9,347 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 225.

About ZIP code 70346

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $162,200. Owner-occupancy sits near the national average at 65%.

Median household income is $29,220. Poverty affects 38% of residents, above the national average. SNAP benefit usage at 28% of households reflects economic stress in the area. 46% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 23 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of diabetes (17%), smoking (26%) compared to national benchmarks.

Overall, ZIP code 70346 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.

9,347

population

64.92

sq mi land

Standard

ZIP type

Central (CT)

timezone

70346 ZIP code map

Cities in ZIP code 70346

Below are the cities the US Postal Service accepts for ZIP code 70346. Using any city not on this list may result in mail delivery delays.

City	Status
Donaldsonville	Acceptable
Donaldsonville	Preferred

Nearby ZIP codes

70725 Darrow (4.1 mi) 70734 Geismar (5.6 mi) 70341 Belle Rose (6.9 mi) 70721 Carville (8.2 mi) 70737 Gonzales (8.5 mi) 70393 Plattenville (8.9 mi) 70778 Sorrento (9.7 mi) 70776 Saint Gabriel (9.8 mi) 70788 White Castle (9.9 mi) 70723 Convent (10.8 mi) 70086 Saint James (12.8 mi) 70769 Prairieville (13.1 mi)

Demographics updated 05/2026

Population
Total population	9,347
Population density	144 / sq mi
State FIPS	22
County FIPS	005

Geography
Land area	64.92 sq mi
Water area	4.88 sq mi
Latitude	30.1261
Longitude	-91.0105
Timezone	Central (CT)
Area code	225

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	59.1%	30.1%	49.2%
$50k – $100k	25.8%	29.4%	27.7%
$100k – $200k	14.2%	32.1%	18.3%
Over $200k	0.9%	8.4%	4.7%

Demographics & statistics

9,347

Population

144

People per sq mi

35.7

Median age

$29,220

Median household income

$22,037

Per capita income

$162,200

Median home value

$736

Median monthly rent

64.5%

Home ownership

38.2%

Poverty rate

12.4%

Unemployment

2,887

Housing units

12.4%

Bachelor's or higher

Age distribution

Male Female

514

Under 5

558

222

5–9

242

328

10–14

356

294

15–19

320

185

20–24

201

628

25–34

682

475

35–44

517

418

45–54

454

239

55–59

260

292

60–64

318

536

65–74

582

197

75–84

214

151

85+

164

← Male

Female →

Age summary

Group	Count	%
Under 18	2,673	28.6%
18 and over	6,674	71.4%
65 and over	1,844	19.7%
Median age	35.7 years

Race & ethnicity

Black or African American 71.5%

White 24.9%

Two or more races 1.8%

Hispanic or Latino 0.8%

Asian 0.6%

Other race 0.4%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
Black or African American	6,734	71.5%
White	2,342	24.9%
Two or more races	174	1.8%
Hispanic or Latino	75	0.8%
Asian	55	0.6%
Other race	36	0.4%
Native Hawaiian / Pacific Islander	6	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	59.1%	30.1%	49.2%
$50k – $100k	25.8%	29.4%	27.7%
$100k – $200k	14.2%	32.1%	18.3%
Over $200k	0.9%	8.4%	4.7%

Under $10k 11.1%

$10k–$15k 13.1%

$15k–$25k 20.5%

$25k–$35k 10.4%

$35k–$50k 6.5%

$50k–$75k 12.6%

$75k–$100k 7.3%

$100k–$150k 12.0%

$150k–$200k 4.2%

$200k+ 2.4%

Range	% of households
Under $10k	11.1%
$10k–$15k	13.1%
$15k–$25k	20.5%
$25k–$35k	10.4%
$35k–$50k	6.5%
$50k–$75k	12.6%
$75k–$100k	7.3%
$100k–$150k	12.0%
$150k–$200k	4.2%
$200k+	2.4%
Median income	$29,220

Housing

Home values

Under $50k 11.0%

$50k–$100k 13.4%

$100k–$150k 17.0%

$150k–$200k 21.0%

$200k–$300k 26.9%

$300k–$500k 8.7%

$500k–$1M 1.9%

Housing overview

Metric	Value
Median home value	$162,200
Median rent / month	$736
Owner occupied	64.5%
Renter occupied	35.5%
Vacant	15.0%
Single-family detached	63.1%
Large apartment buildings	1.3%
Mobile homes	17.4%
Median rooms	5.1
Avg household size (owned)	2.44

Year built

Era	%
2020 or later	0.0%
2010–2019	7.1%
2000–2009	12.4%
1990–1999	8.6%
1980–1989	19.4%
1970–1979	15.0%
1960–1969	13.4%
1950–1959	15.1%
1940–1949	5.0%
1939 or earlier	3.9%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	5.6%
2 bedrooms	31.1%
3 bedrooms	47.1%
4 bedrooms	10.8%
5+ bedrooms	3.3%

Vehicles per household

Vehicles	% of households
No vehicle	20.6%
1 vehicle	38.5%
2 vehicles	23.8%
3 or more	17.1%

Heating fuel

Fuel type	%
Utility gas	31.7%
Electricity	64.2%
Propane / LP gas	1.3%
Wood	0.7%
No fuel used	2.1%

Households & families

Household type	Count	%
Married-couple family	1,125	32.0%
Cohabiting couple	196	5.6%
Male householder, no spouse	567	16.1%
Female householder, no spouse	1,627	46.3%
Households with children under 18	1,056	30.0%
Households with seniors (65+)	1,328	37.8%
Average household size	2.50

Marital status

Status	Male	Female
Never married	44.2%	32.8%
Married	38.6%	37.1%
Separated	2.3%	1.5%
Widowed	3.4%	16.1%
Divorced	11.5%	12.5%

Education

Less than 9th grade 2.6%

Some HS, no diploma 12.4%

HS graduate 46.1%

Some college, no degree 18.7%

Associate's degree 7.8%

Bachelor's degree 8.8%

Graduate / professional 3.6%

Metric	%
HS diploma or higher	85.0%
Bachelor's or higher	12.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	302	13.6%
Kindergarten	105	4.7%
Elementary school	947	42.6%
High school	384	17.3%
College / grad school	483	21.7%

Employment

Industry of employment

Education & healthcare 28.6%

Arts, food & hospitality 14.0%

Retail trade 10.6%

Public administration 9.2%

Manufacturing 8.5%

Construction 7.4%

Professional & management 6.8%

Finance & real estate 5.9%

Information 3.1%

Transportation & utilities 2.7%

Other services 2.3%

Agriculture & mining 0.7%

Occupation

Category	%
Management, business & arts	24.9%
Service	28.2%
Sales & office	16.5%
Natural resources & construction	10.0%
Production & transportation	20.5%

Employment type

Type	%
Private sector	73.7%
Government	21.7%
Self-employed	3.0%
Unpaid family workers	1.6%

Commute

Method	%
Drive alone	73.5%
Carpool	20.7%
Public transit	0.0%
Walk	4.3%
Work from home	1.6%
Other means	0.0%
Avg commute (minutes)	22.7

Poverty

All people 38.2%

Under 18 years 68.1%

18 and over 25.3%

Married-couple families 15.5%

Female-led households 58.1%

Income support

Source	% of households
Social Security	46.1%
Retirement income	22.4%
Supplemental Security	7.6%
Cash public assistance	10.2%
Food stamps / SNAP	27.9%

Health indicators

Condition	%
Obesity	40.9%
High blood pressure	47.1%
High cholesterol	36.3%
Diabetes	17.2%
Heart disease	8.2%
Stroke	5.2%
Asthma	10.9%
Arthritis	28.2%
Kidney disease	4.2%
Pulmonary disease	9.5%
Cancer	5.8%

Behavior / access	%
Smoking	26.4%
Binge drinking	16.4%
No physical activity	39.7%
Less than 7 hrs sleep	42.5%
Depression	24.3%
Fair or poor health	26.9%
Poor mental health	19.3%
Poor physical health	15.6%
No health insurance	18.4%
Visited doctor (checkup)	82.6%
Visited dentist	44.6%
Cholesterol screening	88.7%
Teeth loss	27.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	408	6.1%

Disability	%
Any disability	16.2%
Under 18	4.3%
18–64 years	15.6%
65 and over	35.5%

Health insurance coverage

Type	%
Private insurance	42.6%
Public insurance	60.1%
No insurance	6.7%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	8,275	88.5%
Spanish	45	0.5%
Other Indo-European	17	0.2%
Asian & Pacific Islander	11	0.1%
Other languages	17	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	9,274	99.2%
Born in same state	9,268	99.2%
Born in different state	8,829	94.5%
Foreign born	6	0.1%
Naturalized citizen	73	0.8%
Not a US citizen	55	75.3%

Ancestry

Ancestry	Count	%
Arab	630	6.7%
Italian	140	1.5%
German	132	1.4%

Ancestry	Count	%
French	82	0.9%
English	7	0.1%

Technology access

Metric	% of households
Computer access	37.6%
Internet access	85.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 70346

What city is ZIP code 70346 in?

ZIP code 70346 is primarily assigned to Donaldsonville, Louisiana.

What county is ZIP code 70346 in?

ZIP code 70346 falls within Ascension County, Louisiana.

What is the poverty rate in ZIP code 70346?

38% of residents in ZIP code 70346 live below the poverty line, above the national average.

How educated is the population of ZIP code 70346?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 70346 have a large retiree population?

46% of households in ZIP code 70346 receive Social Security income, suggesting a significant retiree or disability population.

What are the health statistics for ZIP code 70346?

Health data for ZIP code 70346 shows elevated rates of diabetes (17%) and smoking (26%) compared to national benchmarks.

What timezone is ZIP code 70346 in?

ZIP code 70346 observes the CST timezone.