Data Last Updated: July 1, 2025

Montgomery County, TX ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Montgomery, TX.	32 ZIP Codes (21 General, 5 PO Box, 0 Unique, & 6 Multi County) [More Details]
Area Codes: The Telephone Area Codes that are associated with Montgomery, TX. Area Codes are used in the North American Numbering Plan (NANP) to facilitate phone routing. There are approximately 350 area codes in use in the United States.	281, 346, 832, 713, 936
Timezone: Time zone designation within the U.S. Please note that not all areas in the U.S. observe daylight saving time which can affect actual local time for this city. There are 7 standard time zones which are, from west to east: Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern, Atlantic. Also included in U.S. Territories are Samoa, Guam and Palau.	Central
Local Time: The current local time for each timezone. If more than 1 time zone for this area, all local times will be shown. Counties can cross timezones, so more than 1 may be shown.	12:00:00 AM
Population: The population of Montgomery, TX from the U.S. Census 2020. Included are U.S. Citizens, permanent residents, temporary migrants, and undocumented individuals. The total population represents people who live in the city, not just those present while the Census was being completed.	620,443 [More Details]
FIPS: FIPS stands for Federal Information Processing Standards, which are a set of publicly announced standards for computer systems. A county FIPS code is a unique numeric identifier for a county in the United States, assigned by the National Institute of Standards and Technology (NIST). County FIPS codes have five digits, with the first two digits identifying the state and the last 3 indicating the county.	48339
CBSA: A Core Based Statistical Area (CBSA) is the recognized term for a region that functions around an urban core with a population of at least 10,000 people, according to the standards set by the Office of Management and Budget (OMB) in 2000. A CBSA is divided into two subsets: Metro and Micro, and these classifications are determined by population density. A Micro area is identified by a population ranging between 10,000 to 50,000, while a Metro area is defined as having a population that exceeds 50,000.	Houston-Pasadena-The Woodlands, TX
Land Area: The approximate amount of land area covered by Montgomery, TX in square miles. The Land Area provided by the Census Bureau is based on geographic boundaries that include the mainland, islands, inland, coastal, Great Lakes, and territorial waters associated with each city.	1,042 square miles
Water Area: The approximate amount of water area covered by Montgomery, TX in square miles. Calculations by the Census Bureau for Water Area take into account inland bodies of water, coastal regions, Great Lakes, and territorial sea waters. This encompasses features such as lakes, reservoirs, rivers, and coastal water bodies.	35 square miles
Coordinates: The latitude/longitude centroid coordinates for Montgomery County, TX.	-95.503005, 30.300197
Quick Link: Copy the direct link to the Montgomery, TXCounty page and use anywhere you like!	https://www.zip-codes.com/county/tx-montgomery.asp

Montgomery, TX ZIP Code Boundaries

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Montgomery County, TX Covers 32 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 77301	General	Conroe	35,923	5.79%
ZIP Code 77302	General	Conroe	19,384	3.12%
ZIP Code 77303	General	Conroe	20,974	3.38%
ZIP Code 77304	General	Conroe	35,969	5.80%
ZIP Code 77305	P.O. Box	Conroe	0	0.00%
ZIP Code 77306	General	Conroe	15,127	2.44%
ZIP Code 77316	General	Montgomery	30,598	4.93%
ZIP Code 77318	General	Willis	17,518	2.82%
ZIP Code 77327 *	General	Cleveland	32,269	--
ZIP Code 77328 *	General	Cleveland	17,071	--
ZIP Code 77333	P.O. Box	Dobbin	0	0.00%
ZIP Code 77339 *	General	Kingwood	43,076	--
ZIP Code 77353	P.O. Box	Magnolia	0	0.00%
ZIP Code 77354	General	Magnolia	40,625	6.55%
ZIP Code 77355	General	Magnolia	29,300	4.72%
ZIP Code 77356	General	Montgomery	32,136	5.18%
ZIP Code 77357	General	New Caney	30,339	4.89%
ZIP Code 77358 *	General	New Waverly	4,817	--
ZIP Code 77362	General	Pinehurst	7,007	1.13%
ZIP Code 77365	General	Porter	42,086	6.78%
ZIP Code 77372	General	Splendora	13,306	2.14%
ZIP Code 77378	General	Willis	17,417	2.81%
ZIP Code 77380	General	Spring	27,651	4.46%
ZIP Code 77381	General	Spring	35,191	5.67%
ZIP Code 77382	General	Spring	37,755	6.09%
ZIP Code 77384	General	Conroe	23,952	3.86%
ZIP Code 77385	General	Conroe	27,801	4.48%
ZIP Code 77386	General	Spring	66,058	10.65%
ZIP Code 77387	P.O. Box	Spring	0	0.00%
ZIP Code 77393	P.O. Box	Spring	0	0.00%
ZIP Code 77447 *	General	Hockley	20,805	--
ZIP Code 77873 *	General	Richards	1,450	--

* Indicates a Multi County ZIP Code. These ZIP Codes partially cross over into Montgomery, TX, but will mostly cover area in a different County. Not included in % of Population calculations.

Important Montgomery, TX Information

Montgomery County, TX Covers 32 ZIP Codes. This includes 21 General ZIP Codes, 5 PO Box ZIP Codes, and 0 Unique (reserved for Business and Volume Mail Receivers). There are also 6 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Montgomery County.

The population for Montgomery County is 620,443, according to the U.S. Census. Population Density is 595.43 persons per square mile. With 238,489 Housing Units, the Average Household Size is 2.80 persons. There are 219,796 Family Households with an Average Family Size of 2.81 persons. 13.54% of the population is without Health Insurance. The 61.72% Employment Rate is 1.92% above the national average of 59.8%.429,285 people aged 25+ have some educational achievement, with 37.90% (or 162,678 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

There are 5 area codes serving this area including281, 346, 832, 713 and 936. Montgomery is also located in the Central timezone and the current local time is shown above.

Montgomery is part of the Houston-Pasadena-The Woodlands, TX Core Based Statistical Area (CBSA). Its CBSA Code is 26420.It is classified as a metro area, which means the combined population is 50,000 or more (at its core).

CBSAs are defined by the OMB as geographic areas that have at least one core with a population of 10,000 or more (for a micro area) and adjacent territory with a high degree of social and economic integration. CBSA codes are commonly used to accurately file Medicare claims and to verify applicable incentives using a patient's ZIP Code.

ZIP Codes in Montgomery, TX have 287,084 Residential mailboxes and 15,183 Business mailboxes.There are 14,076 businesses with a total of 186,961 employees. That is an average of 13.3 employees per business. Annual payroll for these businesses is $12,280,431,000. Other Demographics

Montgomery County Demographic Profile

Population & People

Total Population

620,443

Income

Median Household Income

$97,266

Housing

Total Housing Units

238,489

Health

Without Healthcare Coverage

13.54%

Business & Economy

Total Businesses

14,076

Families

Total Households

219,796

Employment

Employment Rate

61.72%

Education

Bachelor's Degree or Higher

37.90%

Total Population: Total number of people from the 2020 U.S. Census for Montgomery, TX. This reflects the exact count of this area at that point in time, not future estimates, regardless of citizenship or immigration status. It is intended to count all persons living within the geographic area, not just those present on the day of the census.	620,443
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Montgomery, TX. This is derived from known delivery information, household occupancy rates, household size, and more to come up with an accurate estimation for the current population. IMPORTANT: This does not include population totals for persons in nursing homes, correctional facilities, or other institutions. This is an estimation of the household population based on US Postal Service delivery information.	810,411
Total Households: Total number of Households from the 2020 U.S. Census for Montgomery, TX. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	219,796
Total Housing Units: The total number of Housing Units is the number of occupied units + the number of vacant units. Ownership is defined by whether the unit is occupied by an owner or by a tenant. Owner occupancy means that the owner lives in the unit. This value comes from the 2020 U.S. Census and is not a projection or estimate.	238,489
Average Household Size: The Average Household Size, is obtained by dividing the number of people in Households (excluding those in group quarters, nursing home, prisons, and dorm rooms) by the number of Households. A Household includes everyone living in a residential unit. Those who do not live in a household are classified as living in group accommodation. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.80
Average Family Size: Average Family Size is calculated by dividing the number of people in a Family Household by the number of Family Households. The U.S. Census Bureau defines family households as households consisting of two or more individuals who are related by birth, marriage, or adoption. They also may include other unrelated people. Non-family households consist of people who live alone or who share their residence with unrelated individuals. The Average Family Size only looks at the households classified as Family Households. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.	2.81

Other Montgomery Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	287,084
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	15,183
Total Delivery Receptacles: The total number of delivery receptacles. This includes curb side mailboxes, centralized units, PO Boxes, NDCBU, and contract boxes. This count is for Residential and Business combined.	424,440
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	109,134
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	37,760

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	14,076
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$3,228,574,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$12,280,431,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	186,961

Sum of all ZIP Codes assigned Montgomery, TX as their primary County.

References

U.S. Postal Service [Last Updated: 7/1/2025], https://www.usps.com
ZIP-Codes.com Internal Data Creation [Last Updated: 7/1/2025], https://www.zip-codes.com
U.S. Geological Survey [Updated as needed], https://www.usgs.gov
U.S. Census [Updated Yearly], https://www.census.gov
U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023], https://www.census.gov