77303 ZIP Code, Conroe, TX

77303 is a ZIP code in Conroe, Texas in Montgomery County. It covers 61 square miles of land, centered about 43 miles north of downtown Houston. The closest ZIP codes are 77301, 77378 and 77306. 28,854 people live here in 9,754 households. With about 474 people per square mile it is lightly settled, and most homes are owner-occupied (74%). Median household income is $75,348, close to the Texas median of $78,476; 40% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents28,854
Households9,754
Median household income$75,348
Income per person$33,513
Median age33.3
Homeowners74.2%
Median home value$240,700
Median rent$1,204
Bachelor's degree or higher17.1%
Average commute (minutes)31.9
Households with kids under 1840.3%
Moved in the past year14.1%
Below the poverty line18.9%
Broadband internet93.5%
Speak a non-English language at home31.0%

Household income

% of householdsValue
<$10K3.5%
$10–15K2.1%
$15–25K8.4%
$25–35K6.5%
$35–50K11.2%
$50–75K18.1%
$75–100K11.2%
$100–150K21.6%
$150–200K8.7%
$200K+8.6%

Age

% of all residentsValue
<1016.7%
10–1913.1%
20–248.0%
25–3416.4%
35–4410.0%
45–5413.7%
55–6410.0%
65–748.5%
75+3.7%

Tenure

% of housing unitsValue
Owned, with mortgage40.5%
Owned outright28.2%
Rented24.0%
Vacant7.3%

Type of building

% of housing unitsValue
Detached house55.4%
Townhome2.2%
2–4 units2.5%
5–19 units6.0%
20+ units4.1%
Mobile / other29.9%

Businesses in 77303

393 business establishments with 7,721 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

77303 has 14 USPS carrier routes with 11,606 residential and 473 business mailboxes. Open the EDDM route map.

Carrier routes in 77303

77303 has 14 USPS carrier routes (2 city (C), 12 rural (R)) with 11,606 residential and 473 business mailboxes. Routes range from 463 homes (R081) to 1,175 homes (R040); the median route has 804 homes. The Census counted 9,754 households in 77303 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4991
500–7492
750–9998
1,000–1,4993
1,500+0

Best routes in 77303 for…

Highest income

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

  1. Route R046 — Est. median household income $117,448, 1,046 homes
  2. Route R107 — Est. median household income $107,975, 804 homes
  3. Route R022 — Est. median household income $88,647, 758 homes
  4. Route R093 — Est. median household income $84,307, 739 homes
  5. Route R137 — Est. median household income $79,325, 609 homes

Select these 5 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 C056 — Est. families with children under 18 58.1%, 1,024 homes
  2. Route R013 — Est. families with children under 18 50.5%, 797 homes
  3. Route R003 — Est. families with children under 18 48.9%, 837 homes
  4. Route R040 — Est. families with children under 18 46.8%, 1,175 homes
  5. Route R023 — Est. families with children under 18 46.2%, 750 homes

Select these 5 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 R022 — Est. owner-occupied homes 93.0%, 758 homes
  2. Route R040 — Est. owner-occupied homes 84.8%, 1,175 homes
  3. Route R046 — Est. owner-occupied homes 83.1%, 1,046 homes
  4. Route R093 — Est. owner-occupied homes 80.8%, 739 homes
  5. Route R137 — Est. owner-occupied homes 80.0%, 609 homes

Select these 5 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 R023 — Est. residents who moved in the past year 25.3%, 750 homes
  2. Route R003 — Est. residents who moved in the past year 24.9%, 837 homes
  3. Route R081 — Est. residents who moved in the past year 24.7%, 463 homes
  4. Route R030 — Est. residents who moved in the past year 21.3%, 814 homes
  5. Route C074 — Est. residents who moved in the past year 18.1%, 803 homes

Select these 5 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 R046 — Est. homes built 2010 or later 47.7%, 1,046 homes
  2. Route R030 — Est. homes built 2010 or later 45.1%, 814 homes
  3. Route R118 — Est. homes built 2010 or later 39.3%, 987 homes
  4. Route R107 — Est. homes built 2010 or later 39.0%, 804 homes
  5. Route R081 — Est. homes built 2010 or later 35.3%, 463 homes

Select these 5 routes on the route map

Most businesses

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

  1. Route R081 — USPS business mailboxes 275, 463 homes
  2. Route C056 — USPS business mailboxes 47, 1,024 homes
  3. Route R137 — USPS business mailboxes 39, 609 homes
  4. Route C074 — USPS business mailboxes 38, 803 homes
  5. Route R093 — USPS business mailboxes 15, 739 homes

Select these 5 routes on the route map

Every carrier route in 77303

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C056City1,02447$45,45927.6%58.1%16.9%
C074City80338$60,07059.1%38.3%18.1%
R003Rural8374$74,70672.9%48.9%24.9%
R013Rural79711$68,03178.3%50.5%12.7%
R022Rural7583$88,64793.0%18.8%14.2%
R023Rural75011$77,65271.2%46.2%25.3%
R030Rural8144$72,45373.4%38.2%21.3%
R040Rural1,1757$59,88684.8%46.8%5.7%
R046Rural1,0468$117,44883.1%34.0%10.9%
R081Rural463275$59,53855.8%44.1%24.7%
R093Rural73915$84,30780.8%39.1%10.5%
R107Rural8041$107,97578.7%43.2%11.9%
R118Rural98710$56,55872.2%43.3%16.0%
R137Rural60939$79,32580.0%31.5%9.8%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 77303 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 77303

Where it ranks

Mail every home in 77303

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.

Conroe EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 77303, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 77303 in?
77303 is a Conroe, TX mailing address. By land area, 18% lies inside Conroe and 3% lies inside Cut and Shoot; the rest is outside any Census-defined city or community.
What county is 77303 in?
77303 is in Montgomery County.
What is the population of 77303?
About 28,854 people (±2,991), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 20,974.
What is the median household income in 77303?
$75,348 (±$8,320), 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 77303?
14 USPS carrier routes with 11,606 residential and 473 business mailboxes (12,080 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 77303?
The closest, measured center to center: 77301 (5.8 mi, Conroe), 77378 (6.9 mi, Willis), 77306 (7.4 mi, Grangerland), 77304 (9 mi, Conroe), 77302 (10.9 mi, Conroe) and 77328 (11.2 mi, Cleveland).

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