70582 ZIP Code, Saint Martinville, LA

70582 is a ZIP code in Saint Martinville, Louisiana — mostly in St. Martin Parish (94% of its land), with smaller parts in Iberia Parish County. It covers 148 square miles of land. The closest ZIP codes are 70517, 70518 and 70563. 19,209 people live here in 7,907 households. With about 130 people per square mile it is lightly settled, and most homes are owner-occupied (78%). Median household income is $49,837, below the Louisiana median of $60,756.

Quick facts

Key figures

MeasureValue
Residents19,209
Households7,907
Median household income$49,837
Income per person$31,727
Median age42.3
Homeowners77.6%
Median home value$163,300
Median rent$765
Bachelor's degree or higher15.3%
Average commute (minutes)27.4
Households with kids under 1827.6%
Moved in the past year5.3%
Below the poverty line14.2%
Broadband internet80.3%
Speak a non-English language at home7.3%

Household income

% of householdsValue
<$10K5.5%
$10–15K7.3%
$15–25K12.7%
$25–35K8.9%
$35–50K15.9%
$50–75K12.1%
$75–100K13.6%
$100–150K14.1%
$150–200K5.1%
$200K+4.9%

Age

% of all residentsValue
<109.6%
10–1912.1%
20–246.8%
25–3412.2%
35–4414.2%
45–5411.6%
55–6413.3%
65–7413.0%
75+7.2%

Tenure

% of housing unitsValue
Owned, with mortgage29.8%
Owned outright36.3%
Rented19.0%
Vacant14.9%

Type of building

% of housing unitsValue
Detached house72.0%
Townhome0.4%
2–4 units3.6%
5–19 units0.7%
20+ units1.0%
Mobile / other22.3%

Businesses in 70582

256 business establishments with 2,215 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

70582 has 13 USPS carrier routes with 7,824 residential and 295 business mailboxes. Open the EDDM route map.

Carrier routes in 70582

70582 has 13 USPS carrier routes (4 city (C), 9 rural (R)) with 7,824 residential and 295 business mailboxes. Routes range from 296 homes (R009) to 816 homes (R004); the median route has 634 homes. The Census counted 7,907 households in 70582 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4994
500–7498
750–9991
1,000–1,4990
1,500+0

Best routes in 70582 for…

Most businesses

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

  1. Route C004 — USPS business mailboxes 83, 354 homes
  2. Route C002 — USPS business mailboxes 33, 478 homes
  3. Route C003 — USPS business mailboxes 27, 605 homes
  4. Route R008 — USPS business mailboxes 26, 743 homes
  5. Route C001 — USPS business mailboxes 23, 425 homes

Select these 5 routes on the route map

Every carrier route in 70582

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City42523$70,440———
C002City47833$28,395———
C003City60527$76,165———
C004City35483$42,733———
R001Rural6213$63,015———
R002Rural63421$39,759———
R003Rural74011$76,165———
R004Rural81614$59,669———
R005Rural65410$51,395———
R006Rural72814$88,795———
R007Rural73013$76,165———
R008Rural74326$161,983———
R009Rural29617$59,737———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 70582 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 70582

Where it ranks

Mail every home in 70582

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) 70582, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 70582 in?
70582 is a Saint Martinville, LA mailing address. By land area, 2% lies inside Cade, 2% lies inside Catahoula and 2% lies inside St. Martinville; the rest is outside any Census-defined city or community.
What county is 70582 in?
70582 is mostly in St. Martin Parish (94% of its land), with smaller parts in Iberia Parish County.
What is the population of 70582?
About 19,209 people (±1,312), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 19,088.
What is the median household income in 70582?
$49,837 (±$6,777), 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 70582?
13 USPS carrier routes with 7,824 residential and 295 business mailboxes (8,119 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 70582?
The closest, measured center to center: 70517 (8.8 mi, Breaux Bridge), 70518 (9.3 mi, Broussard), 70563 (9.6 mi, New Iberia), 70519 (9.7 mi, Cade), 70552 (10.8 mi, Loreauville) and 70501 (13.9 mi, Lafayette).

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