ZIP Code 70521 in Cecilia, LA

Data Last Updated: February 1, 2026
City:Cecilia, Louisiana
Parish:Saint Martin Parish
Timezone:Central (GMT -06:00)
Local Time:8:58:23 AM
Population:No Population Data
Area Code:337
Classification:PO Box
Coordinates:30.3364, -91.8492
Quick Link:
https://www.zip-codes.com/zip-code/70521/zip-code-70521.asp

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In the United States, a county equivalent is a political or administrative subdivision of a state. It has a specific geographic area and some level of governmental authority. The term "county" is used in 47 states. Alaska, Louisiana, and Connecticut have functionally equivalent subdivisions called Boroughs, Parishes, and Planning Regions, respectively. They functionally act like counties by subdividing the state.

70521 - Cecilia, LA

ZIP Code 70521, Cecilia

Small Town Unique ZIP No Census Data
LocationSaint Martin County, LA
Area0 sq mi Single Point
Delivery Points340 (1 homes, 39 businesses)
PO Boxes300
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 70512
Key Facts
  • The post office maintains 300 PO Boxes serving this Saint Martin Parish community
  • Only one street appears in the delivery database: Bushville Highway
  • This ZIP is geographically contained within the 70512 ZIP code boundary
  • The facility serves 39 businesses alongside residential customers
  • One rural carrier route handles street delivery for the area

Postal Infrastructure

The ZIP classification shows "P" for PO Box, yet one street route exists alongside the box section. That single route serves Bushville Highway, while the boxes handle mail for 39 businesses and residents across the wider area. The post office sits within the larger 70512 ZIP boundary, functioning as a named community rather than an independent delivery zone.

Street Name Patterns

Highway Corridor

A single highway defines the delivery geography, typical of rural Louisiana communities where settlement follows major transportation corridors.

Business & Employment Statistics


ZIP Code 70521 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 72 people with an annual payroll of $2,016,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:1,324Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:3Source: CBP
1st Quarter Payroll:$440,000Source: CBP
Annual Payroll:$2,016,000Source: CBP
# of Employees:72Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 70521 is located in Saint Martin Parish, Louisiana, within the Lafayette, LA Metropolitan Statistical Area (CBSA 29180) and Louisiana's 3rd Congressional District. This Metro area has a population of 273,738 people, about 0.00% of whom live in ZIP Code 70521. It covers 0 sq mi of land and a water area of 0 sq mi.

CBSA Name:Lafayette, LASource: Census
CBSA Number:29180Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:273,738Source: Census
MSA:Lafayette, LA MSASource: Census
Land Area:--Source: Census
Water Area:--Source: Census
Congressional District:03Source: USPS
Congressional Land Area:6983.32 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:2213575Source: Census
Place Name:Cecilia CDP; LouisianaSource: Census

Adjacent & Nearby ZIP Codes


70522 | | 70520

Schools in ZIP Code 70521


ZIP Code 70521 is in the St. Martin Parish School District, which serves grades Pre-Kindergarten thru 12th. There are 3 public school(s) in this ZIP Code, and we have located 3 private school(s). It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Cecilia Junior High School 1038 School Road Ext.
Cecilia, LA 70521
District: St. Martin Parish School District
Cecilia Primary School 1021 Alcide Bonin Road
Cecilia, LA 70521
District: St. Martin Parish School District
Cecilia High School 2397 Cecilia Sr. High School Hwy.
Cecilia, LA 70521
District: St. Martin Parish School District
Louisiana Christian School 1545 Anse Broussard Hwy
Breaux Bridge, LA 70517
District: Private SchoolNearby
St Bernard School 251 E Bridge St
Breaux Bridge, LA 70517
District: Private SchoolNearby
Teurlings Catholic High School 139 Teurlings Dr
Lafayette, LA 70501
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 70521


Infinity College 2600 Louisiana Avenue
Lafayette, LA 70501-8833
Type: Post Secondary
University Of Louisiana At Lafayette 104 University Circle
Lafayette, LA 70503
Type: Post Secondary
Blue Cliff College-Lafayette 120 James Comeaux Rd.
Lafayette, LA 70508
Type: Post Secondary
Academy Of Interactive Entertainment 537 Cajundome Boulevard #211
Lafayette, LA 70506-4293
Type: Post Secondary
South Louisiana Community College 1101 Bertrand Drive
Lafayette, LA 70506-4109
Type: Post Secondary
Aveda Arts & Sciences Institute-Lafayette 2922 Johnston St
Lafayette, LA 70503-3246
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov