78370 ZIP Code, Odem, TX

78370 is a ZIP code in Odem, Texas in San Patricio County. It covers 110 square miles of land. The closest ZIP codes are 78352, 78410 and 78409. 5,353 people live here in 1,781 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (81%). Median household income is $69,570, below the Texas median of $78,476; 44% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents5,353
Households1,781
Median household income$69,570
Income per person$31,720
Median age36
Homeowners80.7%
Median home value$176,700
Median rent$984
Bachelor's degree or higher13.1%
Average commute (minutes)23.4
Households with kids under 1844.4%
Moved in the past year6.0%
Below the poverty line13.8%
Broadband internet81.1%
Speak a non-English language at home38.3%

Household income

% of householdsValue
<$10K9.7%
$10–15K2.4%
$15–25K10.5%
$25–35K3.6%
$35–50K9.4%
$50–75K17.9%
$75–100K10.6%
$100–150K16.3%
$150–200K12.5%
$200K+7.0%

Age

% of all residentsValue
<1015.4%
10–1912.3%
20–246.6%
25–3415.1%
35–4412.4%
45–5410.0%
55–6411.8%
65–7410.0%
75+6.5%

Tenure

% of housing unitsValue
Owned, with mortgage36.4%
Owned outright37.2%
Rented17.6%
Vacant8.8%

Type of building

% of housing unitsValue
Detached house80.5%
Townhome0.4%
2–4 units2.2%
5–19 units0.8%
20+ units0.0%
Mobile / other16.1%

Businesses in 78370

52 business establishments with 379 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78370 has 3 USPS carrier routes with 1,440 residential and 33 business mailboxes. Open the EDDM route map.

Carrier routes in 78370

78370 has 3 USPS carrier routes (3 highway contract (H)) with 1,440 residential and 33 business mailboxes. Routes range from 471 homes (H002) to 487 homes (H001); the median route has 482 homes. The Census counted 1,781 households in 78370 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4993
500–7490
750–9990
1,000–1,4990
1,500+0

Best routes in 78370 for…

Highest income

For bigger-ticket offers: remodeling, pools, financial planning, private schools.

  1. Route H003 — Est. median household income $72,904, 482 homes
  2. Route H002 — Est. median household income $67,270, 471 homes
  3. Route H001 — Est. median household income $57,244, 487 homes

Select these 3 routes on the route map

Often mailed by: Home services EDDM, Real estate EDDM postcards, Landscaping and lawn care mailers

Most families with kids

For tutoring, youth sports, pediatric dental, child care and family dining.

  1. Route H001 — Est. families with children under 18 52.3%, 487 homes
  2. Route H002 — Est. families with children under 18 46.1%, 471 homes
  3. Route H003 — Est. families with children under 18 40.0%, 482 homes

Select these 3 routes on the route map

Often mailed by: Dental practice EDDM, Healthcare and clinic mailers

Most homeowners

Owners decide on roofs, HVAC, lawns, solar and insurance; renters usually can't.

  1. Route H003 — Est. owner-occupied homes 85.6%, 482 homes
  2. Route H001 — Est. owner-occupied homes 85.4%, 487 homes
  3. Route H002 — Est. owner-occupied homes 67.1%, 471 homes

Select these 3 routes on the route map

Often mailed by: Roofing direct mail, HVAC postcards

Most new movers

New residents are still choosing a dentist, a gym and a lawn service.

  1. Route H002 — Est. residents who moved in the past year 5.3%, 471 homes
  2. Route H003 — Est. residents who moved in the past year 5.2%, 482 homes
  3. Route H001 — Est. residents who moved in the past year 3.3%, 487 homes

Select these 3 routes on the route map

Often mailed by: Restaurant EDDM menus and offers, Gym and fitness mailers

Newest homes

Newer subdivisions: landscaping, window treatments, fencing, security, home warranties.

  1. Route H001 — Est. homes built 2010 or later 18.6%, 487 homes
  2. Route H003 — Est. homes built 2010 or later 17.7%, 482 homes
  3. Route H002 — Est. homes built 2010 or later 8.1%, 471 homes

Select these 3 routes on the route map

Most businesses

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

  1. Route H002 — USPS business mailboxes 19, 471 homes
  2. Route H001 — USPS business mailboxes 12, 487 homes
  3. Route H003 — USPS business mailboxes 2, 482 homes

Select these 3 routes on the route map

Every carrier route in 78370

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
H001Highway contract48712$57,24485.4%52.3%3.3%
H002Highway contract47119$67,27067.1%46.1%5.3%
H003Highway contract4822$72,90485.6%40.0%5.2%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78370 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 78370

Where it ranks

Mail every home in 78370

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) 78370, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78370 in?
78370 is a Odem, TX mailing address. By land area, 1% lies inside Odem and 1% lies inside Edroy; the rest is outside any Census-defined city or community.
What county is 78370 in?
78370 is in San Patricio County.
What is the population of 78370?
About 5,353 people (±759), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 4,746.
What is the median household income in 78370?
$69,570 (±$13,403), compared with $78,476 for Texas as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 78370?
3 USPS carrier routes with 1,440 residential and 33 business mailboxes (1,473 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78370?
The closest, measured center to center: 78352 (6 mi, Edroy), 78410 (6.8 mi, Corpus Christi), 78409 (9.5 mi, Corpus Christi), 78387 (10.6 mi, Morgan Farm), 78402 (11.7 mi, Corpus Christi) and 78406 (12.6 mi, Corpus Christi).

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