Data Last Updated: July 1, 2025

Saint Tammany Parish, LA ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Saint Tammany, LA.	21 ZIP Codes (13 General, 7 PO Box, 0 Unique, & 1 Multi County) [More Details]
Area Codes: The Telephone Area Codes that are associated with Saint Tammany, LA. Area Codes are used in the North American Numbering Plan (NANP) to facilitate phone routing. There are approximately 350 area codes in use in the United States.	985, 504
Timezone: Time zone designation within the U.S. Please note that not all areas in the U.S. observe daylight saving time which can affect actual local time for this city. There are 7 standard time zones which are, from west to east: Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern, Atlantic. Also included in U.S. Territories are Samoa, Guam and Palau.	Central
Local Time: The current local time for each timezone. If more than 1 time zone for this area, all local times will be shown. Counties can cross timezones, so more than 1 may be shown.	12:00:00 AM
Population: The population of Saint Tammany, LA from the U.S. Census 2020. Included are U.S. Citizens, permanent residents, temporary migrants, and undocumented individuals. The total population represents people who live in the city, not just those present while the Census was being completed.	264,570 [More Details]
FIPS: FIPS stands for Federal Information Processing Standards, which are a set of publicly announced standards for computer systems. A county FIPS code is a unique numeric identifier for a county in the United States, assigned by the National Institute of Standards and Technology (NIST). County FIPS codes have five digits, with the first two digits identifying the state and the last 3 indicating the county.	22103
CBSA: A Core Based Statistical Area (CBSA) is the recognized term for a region that functions around an urban core with a population of at least 10,000 people, according to the standards set by the Office of Management and Budget (OMB) in 2000. A CBSA is divided into two subsets: Metro and Micro, and these classifications are determined by population density. A Micro area is identified by a population ranging between 10,000 to 50,000, while a Metro area is defined as having a population that exceeds 50,000.	Slidell-Mandeville-Covington, LA
Land Area: The approximate amount of land area covered by Saint Tammany, LA in square miles. The Land Area provided by the Census Bureau is based on geographic boundaries that include the mainland, islands, inland, coastal, Great Lakes, and territorial waters associated with each city.	845 square miles
Water Area: The approximate amount of water area covered by Saint Tammany, LA in square miles. Calculations by the Census Bureau for Water Area take into account inland bodies of water, coastal regions, Great Lakes, and territorial sea waters. This encompasses features such as lakes, reservoirs, rivers, and coastal water bodies.	250 square miles
Coordinates: The latitude/longitude centroid coordinates for Saint Tammany Parish, LA.	-89.958375, 30.410274
Quick Link: Copy the direct link to the Saint Tammany, LAParish page and use anywhere you like!	https://www.zip-codes.com/county/la-saint-tammany.asp

Saint Tammany, LA ZIP Code Boundaries

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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.

Saint Tammany Parish, LA Covers 21 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 70420	General	Abita Springs	8,030	3.04%
ZIP Code 70427 *	General	Bogalusa	17,941	--
ZIP Code 70431	General	Bush	5,173	1.96%
ZIP Code 70433	General	Covington	41,423	15.66%
ZIP Code 70434	P.O. Box	Covington	0	0.00%
ZIP Code 70435	General	Covington	20,828	7.87%
ZIP Code 70437	General	Folsom	7,575	2.86%
ZIP Code 70445	General	Lacombe	10,866	4.11%
ZIP Code 70447	General	Madisonville	17,120	6.47%
ZIP Code 70448	General	Mandeville	25,670	9.70%
ZIP Code 70452	General	Pearl River	13,187	4.98%
ZIP Code 70457	P.O. Box	Saint Benedict	221	0.08%
ZIP Code 70458	General	Slidell	37,798	14.29%
ZIP Code 70459	P.O. Box	Slidell	0	0.00%
ZIP Code 70460	General	Slidell	22,429	8.48%
ZIP Code 70461	General	Slidell	30,740	11.62%
ZIP Code 70463	P.O. Box	Sun	98	0.04%
ZIP Code 70464	P.O. Box	Talisheek	220	0.08%
ZIP Code 70469	P.O. Box	Slidell	0	0.00%
ZIP Code 70470	P.O. Box	Mandeville	0	0.00%
ZIP Code 70471	General	Mandeville	23,334	8.82%

* Indicates a Multi County ZIP Code. These ZIP Codes partially cross over into Saint Tammany, LA, but will mostly cover area in a different County. Not included in % of Population calculations.

Important Saint Tammany, LA Information

Saint Tammany Parish, LA Covers 21 ZIP Codes. This includes 13 General ZIP Codes, 7 PO Box ZIP Codes, and 0 Unique (reserved for Business and Volume Mail Receivers). There is also 1 Multi County ZIP Code in this area. This record is assigned to a different county, but it does partially cover area in Saint Tammany Parish.

The population for Saint Tammany Parish is 264,570, according to the U.S. Census. Population Density is 313.10 persons per square mile. With 110,370 Housing Units, the Average Household Size is 2.57 persons. There are 102,005 Family Households with an Average Family Size of 2.90 persons. 6.48% of the population is without Health Insurance. The 59.45% Employment Rate is 0.35% above the national average of 59.8%.184,926 people aged 25+ have some educational achievement, with 36.57% (or 67,619 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

There are 2 area codes serving this area including985 and 504. Saint Tammany is also located in the Central timezone and the current local time is shown above.

Saint Tammany is part of the Slidell-Mandeville-Covington, LA Core Based Statistical Area (CBSA). Its CBSA Code is 43640.It is classified as a metro area, which means the combined population is 50,000 or more (at its core).

CBSAs are defined by the OMB as geographic areas that have at least one core with a population of 10,000 or more (for a micro area) and adjacent territory with a high degree of social and economic integration. CBSA codes are commonly used to accurately file Medicare claims and to verify applicable incentives using a patient's ZIP Code.

ZIP Codes in Saint Tammany, LA have 114,222 Residential mailboxes and 7,948 Business mailboxes.There are 7,008 businesses with a total of 85,342 employees. That is an average of 12.2 employees per business. Annual payroll for these businesses is $4,452,547,000. Other Demographics

Saint Tammany Parish Demographic Profile

Population & People

Total Population

264,570

Income

Median Household Income

$79,277

Housing

Total Housing Units

110,370

Health

Without Healthcare Coverage

6.48%

Business & Economy

Total Businesses

7,008

Families

Total Households

102,005

Employment

Employment Rate

59.45%

Education

Bachelor's Degree or Higher

36.57%

Total Population: Total number of people from the 2020 U.S. Census for Saint Tammany, LA. This reflects the exact count of this area at that point in time, not future estimates, regardless of citizenship or immigration status. It is intended to count all persons living within the geographic area, not just those present on the day of the census.	264,570
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Saint Tammany, LA. This is derived from known delivery information, household occupancy rates, household size, and more to come up with an accurate estimation for the current population. IMPORTANT: This does not include population totals for persons in nursing homes, correctional facilities, or other institutions. This is an estimation of the household population based on US Postal Service delivery information.	293,332
Total Households: Total number of Households from the 2020 U.S. Census for Saint Tammany, LA. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	102,005
Total Housing Units: The total number of Housing Units is the number of occupied units + the number of vacant units. Ownership is defined by whether the unit is occupied by an owner or by a tenant. Owner occupancy means that the owner lives in the unit. This value comes from the 2020 U.S. Census and is not a projection or estimate.	110,370
Average Household Size: The Average Household Size, is obtained by dividing the number of people in Households (excluding those in group quarters, nursing home, prisons, and dorm rooms) by the number of Households. A Household includes everyone living in a residential unit. Those who do not live in a household are classified as living in group accommodation. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.57
Average Family Size: Average Family Size is calculated by dividing the number of people in a Family Household by the number of Family Households. The U.S. Census Bureau defines family households as households consisting of two or more individuals who are related by birth, marriage, or adoption. They also may include other unrelated people. Non-family households consist of people who live alone or who share their residence with unrelated individuals. The Average Family Size only looks at the households classified as Family Households. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.90

Other Saint Tammany Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	114,222
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	7,948
Total Delivery Receptacles: The total number of delivery receptacles. This includes curb side mailboxes, centralized units, PO Boxes, NDCBU, and contract boxes. This count is for Residential and Business combined.	132,801
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	97,646
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	8,824

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	7,008
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$1,115,147,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$4,452,547,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	85,342

Sum of all ZIP Codes assigned Saint Tammany, LA as their primary Parish.

References

U.S. Postal Service [Last Updated: 7/1/2025], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 7/1/2025], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023], https://www.census.gov