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US ZIP Code Profile

ZIP Code 70448
Mandeville, Louisiana

ZIP code 70448 is in Mandeville, located in Saint Tammany County, Louisiana, within the New Orleans-Metairie metro area. Its 2020 Census population was 25,670. The estimated median adjusted gross income per tax return is $64,500, and about 12% of filers report $200,000 or more.

2020 Population
25,670
Census ZCTA
County
Saint Tammany
FIPS 22103
Median income (est.)
$64,500
IRS SOI 2022
Land Area
21.94 mi²
+ 2.759 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityMandeville, LA
CountySaint Tammany County (FIPS 22103)
StateLouisiana (FIPS 22)
Metro Area (MSA)New Orleans-Metairie, LA Metro Area (35380)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.36218, -90.03945
Land / Water Area21.94 mi² land · 2.759 mi² water

02Income & Economics

Distribution of the 11,720 individual tax returns filed in 70448 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
25.3%
$25K–$50K
17.3%
$50K–$75K
12.8%
$75K–$100K
9.6%
$100K–$200K
23.0%
$200K+
12.0%
The $200,000+ bracket accounts for 46% of 70448's total adjusted gross income, from 12% of returns — a concentration that drives the gap between the median ($64,500) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 70448's IRS income metrics, 2020–2022.

Median income (2021→2022)
$64,500
▲ 2.3%
Filers earning $200K+
12.0%
▲ 0.4 pt
Total filers
11,720
▲ 0.4%
GET /zipc/v2/zipcodes/70448/soi?year=… $55K 2020 $63K 2021 $64K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 70448 ZCTA.

2000
19,975
 
2010
24,851
▲ +24.4%
2020
25,670
▲ +3.3%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number215746
City AliasesHootenville, Lewisburg, Mandeville

06Frequently Asked Questions

What county is ZIP code 70448 in?

ZIP code 70448 is in Saint Tammany County, Louisiana (county FIPS code 22103).

What city is ZIP code 70448?

The primary USPS city for 70448 is Mandeville, LA.

What metro area (MSA) is 70448 in?

70448 is part of the New Orleans-Metairie, LA Metro Area (MSA code 35380).

What is the population of ZIP code 70448?

The 2020 Census population of 70448 was 25,670 residents.

What is the median income in ZIP code 70448?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70448 is about $64,500, with around 12% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.