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US ZIP Code Profile

ZIP Code 70458
Slidell, Louisiana

ZIP code 70458 is in Slidell, located in Saint Tammany County, Louisiana, within the New Orleans-Metairie metro area. Its 2020 Census population was 37,798. The estimated median adjusted gross income per tax return is $45,666, and about 4% of filers report $200,000 or more.

2020 Population
37,798
Census ZCTA
County
Saint Tammany
FIPS 22103
Median income (est.)
$45,666
IRS SOI 2022
Land Area
20.89 mi²
+ 3.781 mi² water

01Location & Geography

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

Primary CitySlidell, 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
Coordinates30.262075, -89.794106
Land / Water Area20.89 mi² land · 3.781 mi² water

02Income & Economics

Distribution of the 16,960 individual tax returns filed in 70458 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
30.6%
$25K–$50K
23.5%
$50K–$75K
15.3%
$75K–$100K
9.9%
$100K–$200K
16.4%
$200K+
4.3%
The $200,000+ bracket accounts for 23% of 70458's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($45,666) 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 70458's IRS income metrics, 2020–2022.

Median income (2021→2022)
$45,666
▲ 4.4%
Filers earning $200K+
4.3%
▼ 0.1 pt
Total filers
16,960
▼ 0.3%
GET /zipc/v2/zipcodes/70458/soi?year=… $40K 2020 $44K 2021 $46K 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 70458 ZCTA.

2000
32,837
 
2010
35,077
▲ +6.8%
2020
37,798
▲ +7.8%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number218112
City AliasesNorth Shore, Slidell

06Frequently Asked Questions

What county is ZIP code 70458 in?

ZIP code 70458 is in Saint Tammany County, Louisiana (county FIPS code 22103).

What city is ZIP code 70458?

The primary USPS city for 70458 is Slidell, LA.

What metro area (MSA) is 70458 in?

70458 is part of the New Orleans-Metairie, LA Metro Area (MSA code 35380).

What is the population of ZIP code 70458?

The 2020 Census population of 70458 was 37,798 residents.

What is the median income in ZIP code 70458?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 70458 is about $45,666, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.