St. Mary Parish, LA ZIP Codes
9 ZIP codes cover all or part of St. Mary Parish, Louisiana. The Census Bureau counts 47,828 residents in the county, with a median household income of $52,576 and a median home value of $138,900. Median household income ranges from $31,817 in 70514 to $57,959 in 70392. Its largest communities include Franklin, Patterson, Berwick, Baldwin and Amelia.
St. Mary Parish (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 47,828 |
| Households | 18,463 |
| Median household income | $52,576 |
| Median home value | $138,900 |
| Median age | 39.7 |
| Median rent | $848 |
All 9 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 58,927 |
| Households (sum of ZIP codes) | 22,895 |
| Median household income, range across ZIP codes | $31,817 (70514) to $57,959 (70392) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $53,553 |
| Homeowners | 69.9% |
| Households with kids under 18 | 31.5% |
| Moved in the past year | 10.6% |
| Carrier routes in EDDM2GO's route library | 40 routes, 22,818 homes (6 of 9 ZIP codes) |
Top facts
- Highest median household income in St. Mary County: 70392 ($57,959)
- Most residents: 70380 (20,529 people)
- Highest homeownership: 70544 (74.5% own their home)
- Most households with kids: 70342 (39.4% of households)
- Most new movers: 70392 (13.8% moved in last year)
- Youngest median age: 70342 (34.8 years)
- Highest median home value: 70342 ($212,400)
Every ZIP code in St. Mary County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 70380 | Morgan City | 20,529 | 7,968 | $54,595 | $141,600 | 68.9% | 32.9% | 12.2% | 15 | 9,754 | 32% of its land |
| 70538 | Franklin | 12,464 | 4,895 | $52,407 | $117,800 | 74.4% | 27.0% | 7.6% | 10 | 5,247 | 100% of its land |
| 70544 | Jeanerette | 10,269 | 4,118 | $54,601 | $117,200 | 74.5% | 31.4% | 7.7% | 7 | 4,391 | 47% of its land |
| 70392 | Patterson | 8,173 | 3,056 | $57,959 | $159,100 | 66.6% | 31.3% | 13.8% | 4 | 2,759 | 100% of its land |
| 70342 | Berwick | 4,607 | 1,712 | $51,580 | $212,400 | 70.2% | 39.4% | 3.3% | 3 | 2,012 | 100% of its land |
| 70514 | Baldwin | 1,914 | 787 | $31,817 | $115,600 | 55.8% | 20.1% | 9.5% | 1 | 172 | 100% of its land |
| 70522 | Centerville | 495 | 162 | $26,321 | — | 14.2% | 75.9% | 83.4% | — | — | 100% of its land |
| 70523 | Charenton | 476 | 197 | $63,408 | $120,300 | 53.3% | 26.9% | 24.6% | — | — | 100% of its land |
| 70340 | Amelia | 0 | 0 | — | — | — | — | — | — | — | 100% of its land |
A ZIP code is listed for St. Mary Parish when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Franklin — 6,461 residents · 1 ZIP code
- Patterson — 5,744 residents · 1 ZIP code
- Berwick — 4,607 residents · 1 ZIP code
- Baldwin — 1,962 residents · 2 ZIP codes
- Amelia — 1,712 residents · 2 ZIP codes
- Charenton — 1,440 residents · 3 ZIP codes
- Centerville — 685 residents · 2 ZIP codes
- Glencoe — 144 residents · 1 ZIP code
Rankings
- Richest ZIP codes in St. Mary County — 6 ZIP codes ranked
- ZIP codes with the highest home values in St. Mary County — 6 ZIP codes ranked
- ZIP codes with the highest homeownership in St. Mary County — 6 ZIP codes ranked
- ZIP codes with the most families with kids in St. Mary County — 6 ZIP codes ranked
- ZIP codes with the most new movers in St. Mary County — 6 ZIP codes ranked
- Youngest ZIP codes in St. Mary County — 6 ZIP codes ranked
- Oldest ZIP codes in St. Mary County — 6 ZIP codes ranked
- Fastest-growing ZIP codes in St. Mary County — 6 ZIP codes ranked
Price a mailing to St. Mary County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in St. Mary Parish, LA?
- 70380, 70538, 70544, 70392, 70342, 70514, 70522, 70523 and 70340. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of St. Mary Parish?
- 47,828 residents in 18,463 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in St. Mary Parish?
- $52,576 for the county as a whole. Its ZIP codes range from $31,817 (70514) to $57,959 (70392).
- Which St. Mary County ZIP code has the highest median household income?
- 70392, at $57,959, among ZIP codes with at least 1,000 residents. See the full ranking of St. Mary County ZIP codes by income.
- How many carrier routes and mailboxes are in St. Mary Parish?
- For the 6 of 9 ZIP codes in EDDM2GO's stored route library: 40 carrier routes reaching 22,818 residential and 1,528 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.