70458 ZIP Code, Slidell, LA

70458 is a ZIP code in Slidell, Louisiana in St. Tammany Parish. It covers 21 square miles of land. The closest ZIP codes are 70460, 70461 and 70445. 39,034 people live here in 15,483 households, more than in 9 of every 10 Louisiana ZIP codes. At about 1,868 people per square mile it has suburban density, and most homes are owner-occupied (72%). Median household income is $72,843, above the Louisiana median of $60,756.

Quick facts

Key figures

MeasureValue
Residents39,034
Households15,483
Median household income$72,843
Income per person$37,405
Median age39.7
Homeowners71.8%
Median home value$237,700
Median rent$1,406
Bachelor's degree or higher32.2%
Average commute (minutes)29.8
Households with kids under 1831.4%
Moved in the past year16.1%
Below the poverty line14.1%
Broadband internet95.3%
Speak a non-English language at home7.5%

Household income

% of householdsValue
<$10K4.1%
$10–15K3.8%
$15–25K6.8%
$25–35K6.9%
$35–50K10.4%
$50–75K20.5%
$75–100K16.0%
$100–150K15.6%
$150–200K8.7%
$200K+7.3%

Age

% of all residentsValue
<1012.4%
10–1913.6%
20–244.4%
25–3412.9%
35–4411.7%
45–5411.3%
55–6412.5%
65–7413.8%
75+7.6%

Tenure

% of housing unitsValue
Owned, with mortgage41.4%
Owned outright23.8%
Rented25.5%
Vacant9.3%

Type of building

% of housing unitsValue
Detached house72.4%
Townhome2.9%
2–4 units6.5%
5–19 units9.7%
20+ units6.6%
Mobile / other1.8%

Businesses in 70458

1,127 business establishments with 12,569 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

70458 has 24 USPS carrier routes with 16,830 residential and 1,545 business mailboxes. Open the EDDM route map.

Carrier routes in 70458

70458 has 24 USPS carrier routes (14 city (C), 10 rural (R)) with 16,830 residential and 1,545 business mailboxes. Routes range from 137 homes (C004) to 935 homes (R031); the median route has 728 homes. The Census counted 15,483 households in 70458 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4990
500–74914
750–9999
1,000–1,4990
1,500+0

Best routes in 70458 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C004 — USPS business mailboxes 351, 137 homes
  2. Route R032 — USPS business mailboxes 193, 733 homes
  3. Route C011 — USPS business mailboxes 187, 524 homes
  4. Route C018 — USPS business mailboxes 153, 668 homes
  5. Route C007 — USPS business mailboxes 132, 578 homes

Select these 5 routes on the route map

Every carrier route in 70458

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City82839$44,897———
C003City7526$56,094———
C004City137351$57,988———
C006City74247$39,162———
C007City578132$75,203———
C008City8355$58,390———
C010City7421$102,783———
C011City524187$41,685———
C015City8050$63,399———
C016City76413$41,685———
C018City668153$102,783———
C020City53948$55,332———
C021City71620$76,406———
C023City723109$63,383———
R006Rural90318$58,390———
R011Rural71716$58,688———
R018Rural6300$88,459———
R021Rural62135$111,789———
R024Rural81833$111,789———
R026Rural6962$111,789———
R031Rural93514$111,789———
R032Rural733193$24,501———
R040Rural78162$58,803———
R043Rural64361$58,688———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 70458 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 70458

Where it ranks

Mail every home in 70458

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 70458, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 70458 in?
70458 is a Slidell, LA mailing address. By land area, 40% lies inside Slidell and 14% lies inside Eden Isle; the rest is outside any Census-defined city or community.
What county is 70458 in?
70458 is in St. Tammany Parish.
What is the population of 70458?
About 39,034 people (±1,673), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 37,798.
What is the median household income in 70458?
$72,843 (±$4,986), compared with $60,756 for Louisiana as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 70458?
24 USPS carrier routes with 16,830 residential and 1,545 business mailboxes (18,376 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 70458?
The closest, measured center to center: 70460 (3.6 mi, Slidell), 70461 (5.4 mi, Slidell), 70445 (9.6 mi, Lacombe), 70452 (11 mi, Pearl River), 39572 (11.3 mi, Pearlington) and 70129 (12.6 mi, New Orleans).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.