70578 ZIP Code, Rayne, LA

70578 is a ZIP code in Rayne, Louisiana — mostly in Acadia Parish (68% of its land), with smaller parts in Lafayette Parish and Vermilion Parish counties. It covers 115 square miles of land. The closest ZIP codes are 70529, 70526 and 70583. 16,432 people live here in 6,043 households. With about 143 people per square mile it is lightly settled, and most homes are owner-occupied (75%). Median household income is $49,875, below the Louisiana median of $60,756.

Quick facts

Key figures

MeasureValue
Residents16,432
Households6,043
Median household income$49,875
Income per person$28,112
Median age35.9
Homeowners75.4%
Median home value$160,200
Median rent$816
Bachelor's degree or higher16.6%
Average commute (minutes)29.1
Households with kids under 1831.3%
Moved in the past year12.2%
Below the poverty line21.4%
Broadband internet86.0%
Speak a non-English language at home6.8%

Household income

% of householdsValue
<$10K8.2%
$10–15K8.2%
$15–25K10.1%
$25–35K7.7%
$35–50K15.8%
$50–75K13.6%
$75–100K10.6%
$100–150K14.0%
$150–200K7.7%
$200K+3.9%

Age

% of all residentsValue
<1017.7%
10–1913.0%
20–246.4%
25–3411.6%
35–4412.8%
45–5411.8%
55–6412.9%
65–747.8%
75+5.9%

Tenure

% of housing unitsValue
Owned, with mortgage29.1%
Owned outright40.7%
Rented22.6%
Vacant7.7%

Type of building

% of housing unitsValue
Detached house71.5%
Townhome1.8%
2–4 units5.0%
5–19 units2.2%
20+ units1.0%
Mobile / other18.6%

Businesses in 70578

305 business establishments with 2,631 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

70578 has 12 USPS carrier routes with 7,261 residential and 323 business mailboxes. Open the EDDM route map.

Carrier routes in 70578

70578 has 12 USPS carrier routes (5 city (C), 7 rural (R)) with 7,261 residential and 323 business mailboxes. Routes range from 248 homes (C005) to 799 homes (C001); the median route has 638 homes. The Census counted 6,043 households in 70578 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4991
500–7499
750–9991
1,000–1,4990
1,500+0

Best routes in 70578 for…

Most businesses

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

  1. Route C003 — USPS business mailboxes 86, 588 homes
  2. Route C004 — USPS business mailboxes 55, 698 homes
  3. Route C001 — USPS business mailboxes 33, 799 homes
  4. Route R003 — USPS business mailboxes 33, 636 homes
  5. Route R005 — USPS business mailboxes 29, 711 homes

Select these 5 routes on the route map

Every carrier route in 70578

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City79933$46,840———
C002City67811$56,851———
C003City58886$46,840———
C004City69855$56,851———
C005City2489$56,851———
R001Rural56417$26,433———
R002Rural6404$82,872———
R003Rural63633$44,746———
R004Rural70010$50,309———
R005Rural71129$39,580———
R006Rural63016$91,429———
R007Rural36920$130,621———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 70578 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 70578

Where it ranks

Mail every home in 70578

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) 70578, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 70578 in?
70578 is a Rayne, LA mailing address. By land area, 3% lies inside Rayne; the rest is outside any Census-defined city or community.
What county is 70578 in?
70578 is mostly in Acadia Parish (68% of its land), with smaller parts in Lafayette Parish and Vermilion Parish counties.
What is the population of 70578?
About 16,432 people (±1,242), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 16,201.
What is the median household income in 70578?
$49,875 (±$10,606), 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 70578?
12 USPS carrier routes with 7,261 residential and 323 business mailboxes (7,585 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 70578?
The closest, measured center to center: 70529 (6.4 mi, Duson), 70526 (7 mi, Crowley), 70583 (8.6 mi, Scott), 70516 (10 mi, Branch), 70506 (11.2 mi, Lafayette) and 70555 (12.2 mi, Maurice).

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