What city is 70788 in?

70788 is a White Castle, LA mailing address. By land area, 2% lies inside Bayou Goula; the rest is outside any Census-defined city or community.

What is the population of 70788?

About 3,830 people (±619), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,692.

What is the median household income in 70788?

$33,079 (±$10,063), 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 70788?

3 USPS carrier routes with 1,451 residential and 53 business mailboxes (1,504 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 70788?

The closest, measured center to center: 70721 (8.9 mi, St. Gabriel), 70341 (9.5 mi, Belle Rose), 70346 (10.1 mi, Donaldsonville), 70764 (10.3 mi, Plaquemine), 70776 (10.4 mi, St. Gabriel) and 70780 (11.5 mi, St. Gabriel).

70788 ZIP Code, White Castle, LA

70788 is a ZIP code in White Castle, Louisiana in Iberville Parish. It covers 112 square miles of land. The closest ZIP codes are 70721, 70341 and 70346. 3,830 people live here in 1,403 households. It is rural, with fewer than 100 people per square mile, and owners and renters are mixed (53% own). Median household income is $33,079, well below the Louisiana median of $60,756.

Quick facts

Mailing city: White Castle, LA
County: Iberville County
Land area: 112 sq mi
Population: 3,830
Median household income: $33,079
Carrier routes: 3 (1,451 homes)

Key figures

Measure	Value
Residents	3,830
Households	1,403
Median household income	$33,079
Income per person	$21,433
Median age	36.3
Homeowners	53.0%
Median home value	$138,100
Median rent	$747
Bachelor's degree or higher	12.1%
Average commute (minutes)	19.3
Households with kids under 18	29.0%
Moved in the past year	8.2%
Below the poverty line	37.8%
Broadband internet	77.0%
Speak a non-English language at home	1.1%

Household income

% of households	Value
<$10K	12.3%
$10–15K	13.8%
$15–25K	15.4%
$25–35K	11.5%
$35–50K	8.8%
$50–75K	20.2%
$75–100K	4.0%
$100–150K	3.3%
$150–200K	6.4%
$200K+	4.4%

Age

% of all residents	Value
<10	14.4%
10–19	15.5%
20–24	6.4%
25–34	11.9%
35–44	13.5%
45–54	8.5%
55–64	9.5%
65–74	12.9%
75+	7.5%

Tenure

% of housing units	Value
Owned, with mortgage	19.6%
Owned outright	24.2%
Rented	38.7%
Vacant	17.5%

Type of building

% of housing units	Value
Detached house	60.4%
Townhome	6.6%
2–4 units	13.4%
5–19 units	0.6%
20+ units	0.0%
Mobile / other	19.1%

Businesses in 70788

40 business establishments with 686 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 10
Construction: 6
Administrative and Support and Waste Management and Remediation Services: 5
Transportation and Warehousing: 3
Finance and Insurance: 3
Professional, Scientific, and Technical Services: 3

EDDM carrier routes

70788 has 3 USPS carrier routes with 1,451 residential and 53 business mailboxes. Open the EDDM route map.

Carrier routes in 70788

70788 has 3 USPS carrier routes (1 city (C), 2 rural (R)) with 1,451 residential and 53 business mailboxes. Routes range from 441 homes (R082) to 542 homes (R081); the median route has 468 homes. The Census counted 1,403 households in 70788 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	2
500–749	1
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 70788 for…

Most businesses

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

Route C071 — USPS business mailboxes 28, 468 homes
Route R082 — USPS business mailboxes 14, 441 homes
Route R081 — USPS business mailboxes 11, 542 homes

Select these 3 routes on the route map

Every carrier route in 70788

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C071	City	468	28	$41,173	—	—	—
R081	Rural	542	11	$41,173	—	—	—
R082	Rural	441	14	$52,681	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 70788 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

70721 — St. Gabriel city, LA (8.9 mi)
70341 — Belle Rose CDP, LA (9.5 mi)
70346 — Donaldsonville city, LA (10.1 mi)
70764 — Plaquemine city, LA (10.3 mi)
70776 — St. Gabriel city, LA (10.4 mi)
70780 — St. Gabriel city, LA (11.5 mi)
70391 — Paincourtville CDP, LA (12 mi)
70734 (12.3 mi)

Areas that include 70788

White Castle, LA ZIP codes — 1 ZIP code
Dorseyville, LA ZIP codes — 1 ZIP code
Bayou Goula, LA ZIP codes — 1 ZIP code
Iberville County ZIP codes — 8 ZIP codes
Louisiana ZIP code data

Where it ranks

Mail every home in 70788

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) 70788, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 70788 in?: 70788 is a White Castle, LA mailing address. By land area, 2% lies inside Bayou Goula; the rest is outside any Census-defined city or community.
What county is 70788 in?: 70788 is in Iberville Parish.
What is the population of 70788?: About 3,830 people (±619), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,692.
What is the median household income in 70788?: $33,079 (±$10,063), 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 70788?: 3 USPS carrier routes with 1,451 residential and 53 business mailboxes (1,504 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 70788?: The closest, measured center to center: 70721 (8.9 mi, St. Gabriel), 70341 (9.5 mi, Belle Rose), 70346 (10.1 mi, Donaldsonville), 70764 (10.3 mi, Plaquemine), 70776 (10.4 mi, St. Gabriel) and 70780 (11.5 mi, St. Gabriel).

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