Donaldsonville ZIP Codes — Ascension County, LA

There is one unique ZIP code in Donaldsonville, Louisiana and it is 70346. Area code: 225.
1
ZIP codes
64.92
sq mi land
4.88
sq mi water
225
area code
Donaldsonville, LA ZIP code map

About Donaldsonville, LA

Donaldsonville, Louisiana, is a distinctive city located in Ascension County. Known for its rich history and vibrant culture, it attracts both residents and visitors alike. With its unique blend of Southern charm and historical significance, Donaldsonville offers a welcoming community atmosphere.

Location & geography

This city is positioned strategically along the banks of the Mississippi River, making it a vital part of Louisiana's natural landscape. Nearby cities include Gonzales, located approximately 10 miles to the southeast, and Baton Rouge, about 25 miles to the north. Donaldsonville encompasses a total area of 64.92 square miles, of which 4.88 square miles is water.

Community & economy

Donaldsonville boasts a tight-knit community that takes pride in its heritage and local traditions. The area is predominantly characterized by agricultural industries, with farming and related activities playing a key role in daily life. Residents and local businesses actively participate in community events, celebrating their cultural history and fostering strong interconnectedness.

Transportation

Access to Donaldsonville is facilitated by major highways, including U.S. Route 61, which runs north-south through the city, providing direct routes to larger urban areas. The nearest airport is Baton Rouge Metropolitan Airport, approximately 25 miles away, offering both domestic and limited international flights. Public transportation options may be limited, but the city's roadways support local travel easily.

History

Donaldsonville was founded in the early 19th century and has grown to be a key location for agricultural industries in Louisiana. Over the years, it has seen notable events, including its role as a major staging area during the Civil War. The city's rich history is preserved in various historical sites throughout the area, showcasing its unique contributions to the region.

Did you know?

A surprising fact about Donaldsonville is that it was once the state capital of Louisiana for a brief period in the 19th century. Additionally, the city is known for its annual Sugar Festival, which celebrates the local sugarcane industry and its cultural significance.

ZIP codes for Donaldsonville, LA (1)
ZIP code City County Map
70346 Donaldsonville Ascension View map

Demographics & statistics

9,347
Population
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

GroupCount%
Under 182,67328.6%
18 and over6,67471.4%
65 and over1,84419.7%
Median age35.7 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%
GroupCount%
Black or African American6,73471.5%
White2,34224.9%
Two or more races1741.8%
Hispanic or Latino750.8%
Asian550.6%
Other race360.4%
Native Hawaiian / Pacific Islander60.1%

Household income

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 $10k11.1%
$10k–$15k13.1%
$15k–$25k20.5%
$25k–$35k10.4%
$35k–$50k6.5%
$50k–$75k12.6%
$75k–$100k7.3%
$100k–$150k12.0%
$150k–$200k4.2%
$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

MetricValue
Median home value$162,200
Median rent / month$736
Owner occupied64.5%
Renter occupied35.5%
Vacant15.0%
Single-family detached63.1%
Large apartment buildings1.3%
Mobile homes17.4%
Median rooms5.1
Avg household size (owned)2.44

Year built

Era%
2020 or later0.0%
2010–20197.1%
2000–200912.4%
1990–19998.6%
1980–198919.4%
1970–197915.0%
1960–196913.4%
1950–195915.1%
1940–19495.0%
1939 or earlier3.9%

Bedrooms

Size% of units
No bedroom (studio)2.0%
1 bedroom5.6%
2 bedrooms31.1%
3 bedrooms47.1%
4 bedrooms10.8%
5+ bedrooms3.3%

Vehicles per household

Vehicles% of households
No vehicle20.6%
1 vehicle38.5%
2 vehicles23.8%
3 or more17.1%

Heating fuel

Fuel type%
Utility gas31.7%
Electricity64.2%
Propane / LP gas1.3%
Wood0.7%
No fuel used2.1%

Households & families

Household typeCount%
Married-couple family1,12532.0%
Cohabiting couple1965.6%
Male householder, no spouse56716.1%
Female householder, no spouse1,62746.3%
Households with children under 181,05630.0%
Households with seniors (65+)1,32837.8%
Average household size2.50

Marital status

StatusMaleFemale
Never married44.2%32.8%
Married38.6%37.1%
Separated2.3%1.5%
Widowed3.4%16.1%
Divorced11.5%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 higher85.0%
Bachelor's or higher12.4%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool30213.6%
Kindergarten1054.7%
Elementary school94742.6%
High school38417.3%
College / grad school48321.7%

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 & arts24.9%
Service28.2%
Sales & office16.5%
Natural resources & construction10.0%
Production & transportation20.5%

Employment type

Type%
Private sector73.7%
Government21.7%
Self-employed3.0%
Unpaid family workers1.6%

Commute

Method%
Drive alone73.5%
Carpool20.7%
Public transit0.0%
Walk4.3%
Other means0.0%
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 Security46.1%
Retirement income22.4%
Supplemental Security7.6%
Cash public assistance10.2%
Food stamps / SNAP27.9%

Health indicators

Condition%
High blood pressure47.1%
High cholesterol36.3%
Heart disease8.2%
Stroke5.2%
Asthma10.9%
Arthritis28.2%
Kidney disease4.2%
Pulmonary disease9.5%
Cancer5.8%
Behavior / access%
Binge drinking16.4%
No physical activity39.7%
Less than 7 hrs sleep42.5%
Fair or poor health26.9%
Poor mental health19.3%
Poor physical health15.6%
No health insurance18.4%
Visited doctor (checkup)82.6%
Visited dentist44.6%
Cholesterol screening88.7%
Teeth loss27.3%

Veterans & disability

VeteransCount%
Civilian veterans4086.1%
Disability%
Any disability16.2%
Under 184.3%
18–64 years15.6%
65 and over35.5%

Health insurance coverage

Type%
Private insurance42.6%
Public insurance60.1%
Uninsured under 190.0%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only8,27588.5%
Spanish450.5%
Other Indo-European170.2%
Asian & Pacific Islander110.1%
Other languages170.2%

Place of birth & citizenship

OriginCount%
Native born (US)9,27499.2%
Born in same state9,26899.2%
Born in different state8,82994.5%
Foreign born60.1%
Naturalized citizen730.8%
Not a US citizen5575.3%

Ancestry

AncestryCount%
Arab6306.7%
Italian1401.5%
German1321.4%
AncestryCount%
French820.9%
English70.1%

Technology access

Metric% of households
Computer access37.6%
Internet access85.8%

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

Frequently asked questions
What ZIP codes does Donaldsonville, LA have?
Donaldsonville, LA has one ZIP code: 70346. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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