What city is 70342 in?

70342 is a Berwick, LA mailing address. By land area, 78% lies inside Berwick; the rest is outside any Census-defined city or community.

What is the population of 70342?

About 4,607 people (±21), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,806.

What is the median household income in 70342?

$51,580 (±$13,786), 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 70342?

3 USPS carrier routes with 1,935 residential and 77 business mailboxes (2,012 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 70342?

The closest, measured center to center: 70392 (4.8 mi, Patterson), 70340 (8.2 mi, Amelia), 70380 (9.1 mi, Morgan City), 70522 (12.4 mi, Centerville), 70339 (15 mi, Pierre Part) and 70372 (16.2 mi, Labadieville).

70342 ZIP Code, Berwick, LA

70342 is a ZIP code in Berwick, Louisiana in St. Mary Parish. It covers 7.5 square miles of land. The closest ZIP codes are 70392, 70340 and 70380. 4,607 people live here in 1,712 households. With about 617 people per square mile it is lightly settled, and most homes are owner-occupied (70%). Median household income is $51,580, below the Louisiana median of $60,756.

Quick facts

Mailing city: Berwick, LA
County: St. Mary County
Land area: 7.5 sq mi
Population: 4,607
Median household income: $51,580
Carrier routes: 3 (1,935 homes)

Key figures

Measure	Value
Residents	4,607
Households	1,712
Median household income	$51,580
Income per person	$29,060
Median age	34.8
Homeowners	70.2%
Median home value	$212,400
Median rent	$493
Bachelor's degree or higher	27.3%
Average commute (minutes)	21.3
Households with kids under 18	39.4%
Moved in the past year	3.3%
Below the poverty line	18.6%
Broadband internet	86.4%
Speak a non-English language at home	2.3%

Household income

% of households	Value
<$10K	5.2%
$10–15K	8.6%
$15–25K	9.6%
$25–35K	13.8%
$35–50K	9.5%
$50–75K	11.0%
$75–100K	12.6%
$100–150K	18.8%
$150–200K	3.7%
$200K+	7.2%

Age

% of all residents	Value
<10	14.8%
10–19	16.8%
20–24	5.7%
25–34	12.9%
35–44	9.9%
45–54	13.8%
55–64	12.9%
65–74	4.5%
75+	8.8%

Tenure

% of housing units	Value
Owned, with mortgage	31.9%
Owned outright	30.3%
Rented	25.5%
Vacant	12.3%

Type of building

% of housing units	Value
Detached house	65.6%
Townhome	0.0%
2–4 units	9.6%
5–19 units	13.6%
20+ units	0.4%
Mobile / other	10.8%

Businesses in 70342

75 business establishments with 1,918 employees (ZIP Codes Business Patterns 2023).

Retail Trade: 12
Other Services (except Public Administration): 8
Professional, Scientific, and Technical Services: 7
Construction: 6
Health Care and Social Assistance: 6
Manufacturing: 5
Wholesale Trade: 5
Transportation and Warehousing: 5

EDDM carrier routes

70342 has 3 USPS carrier routes with 1,935 residential and 77 business mailboxes. Open the EDDM route map.

Carrier routes in 70342

70342 has 3 USPS carrier routes (3 city (C)) with 1,935 residential and 77 business mailboxes. Routes range from 547 homes (C071) to 698 homes (C072); the median route has 690 homes. The Census counted 1,712 households in 70342 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	0
500–749	3
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 70342 for…

Most businesses

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

Route C073 — USPS business mailboxes 42, 690 homes
Route C071 — USPS business mailboxes 21, 547 homes
Route C072 — USPS business mailboxes 14, 698 homes

Select these 3 routes on the route map

Every carrier route in 70342

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C071	City	547	21	$51,130	—	—	—
C072	City	698	14	$88,730	—	—	—
C073	City	690	42	$66,626	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 70342 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

70392 — Patterson city, LA (4.8 mi)
70340 — Amelia CDP, LA (8.2 mi)
70380 — Morgan City city, LA (9.1 mi)
70522 — Centerville CDP, LA (12.4 mi)
70339 — Pierre Part CDP, LA (15 mi)
70372 — Labadieville CDP, LA (16.2 mi)
70356 (16.6 mi)
70538 — Franklin city, LA (16.9 mi)

Areas that include 70342

Where it ranks

Mail every home in 70342

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) 70342, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 70342 in?: 70342 is a Berwick, LA mailing address. By land area, 78% lies inside Berwick; the rest is outside any Census-defined city or community.
What county is 70342 in?: 70342 is in St. Mary Parish.
What is the population of 70342?: About 4,607 people (±21), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,806.
What is the median household income in 70342?: $51,580 (±$13,786), 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 70342?: 3 USPS carrier routes with 1,935 residential and 77 business mailboxes (2,012 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 70342?: The closest, measured center to center: 70392 (4.8 mi, Patterson), 70340 (8.2 mi, Amelia), 70380 (9.1 mi, Morgan City), 70522 (12.4 mi, Centerville), 70339 (15 mi, Pierre Part) and 70372 (16.2 mi, Labadieville).

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