Data Last Updated: July 1, 2025

Rensselaer County, NY ZIP Codes

ZIP Codes: Shows how many general ZIP Codes, PO Boxes, Unique (Business), and Multi County ZIP Codes are associated with Rensselaer, NY.	33 ZIP Codes (26 General, 5 PO Box, 0 Unique, & 2 Multi County) [More Details]
Area Codes: The Telephone Area Codes that are associated with Rensselaer, NY. 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.	518, 838
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.	Eastern
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 Rensselaer, NY 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.	161,130 [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.	36083
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.	Albany-Schenectady-Troy, NY
Land Area: The approximate amount of land area covered by Rensselaer, NY 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.	652 square miles
Water Area: The approximate amount of water area covered by Rensselaer, NY 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.	13 square miles
Coordinates: The latitude/longitude centroid coordinates for Rensselaer County, NY.	-73.509719, 42.711078
Quick Link: Copy the direct link to the Rensselaer, NYCounty page and use anywhere you like!	https://www.zip-codes.com/county/ny-rensselaer.asp

Rensselaer, NY ZIP Code Boundaries

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Rensselaer County, NY Covers 33 ZIP Codes

ZIP Code	Classification	City	Population	% of Population
ZIP Code 12018	General	Averill Park	7,626	4.73%
ZIP Code 12022	General	Berlin	896	0.56%
ZIP Code 12024	General	Brainard	172	0.11%
ZIP Code 12028 *	General	Buskirk	1,078	--
ZIP Code 12033	General	Castleton On Hudson	8,076	5.01%
ZIP Code 12040	P.O. Box	Cherry Plain	38	0.02%
ZIP Code 12052	General	Cropseyville	1,535	0.95%
ZIP Code 12057	General	Eagle Bridge	1,842	1.14%
ZIP Code 12061	General	East Greenbush	9,404	5.84%
ZIP Code 12062	General	East Nassau	1,878	1.17%
ZIP Code 12063	General	East Schodack	443	0.27%
ZIP Code 12082	P.O. Box	Grafton	28	0.02%
ZIP Code 12089	P.O. Box	Hoosick	0	0.00%
ZIP Code 12090	General	Hoosick Falls	6,223	3.86%
ZIP Code 12094	General	Johnsonville	2,337	1.45%
ZIP Code 12118 *	General	Mechanicville	16,618	--
ZIP Code 12121	General	Melrose	1,767	1.10%
ZIP Code 12123	General	Nassau	5,096	3.16%
ZIP Code 12133	P.O. Box	North Hoosick	0	0.00%
ZIP Code 12138	General	Petersburg	3,012	1.87%
ZIP Code 12140	General	Poestenkill	1,639	1.02%
ZIP Code 12144	General	Rensselaer	21,277	13.20%
ZIP Code 12153	General	Sand Lake	818	0.51%
ZIP Code 12154	General	Schaghticoke	2,669	1.66%
ZIP Code 12156	General	Schodack Landing	853	0.53%
ZIP Code 12168	General	Stephentown	1,681	1.04%
ZIP Code 12169	General	Stephentown	445	0.28%
ZIP Code 12180	General	Troy	55,907	34.70%
ZIP Code 12181	P.O. Box	Troy	0	0.00%
ZIP Code 12182	General	Troy	14,657	9.10%
ZIP Code 12185	General	Valley Falls	2,059	1.28%
ZIP Code 12196	General	West Sand Lake	2,930	1.82%
ZIP Code 12198	General	Wynantskill	7,548	4.68%

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

Important Rensselaer, NY Information

Rensselaer County, NY Covers 33 ZIP Codes. This includes 26 General ZIP Codes, 5 PO Box ZIP Codes, and 0 Unique (reserved for Business and Volume Mail Receivers). There are also 2 Multi County ZIP Codes. These records are assigned a different primary county, but they partially cover area in Rensselaer County.

The population for Rensselaer County is 161,130, according to the U.S. Census. Population Density is 247.13 persons per square mile. With 74,197 Housing Units, the Average Household Size is 2.30 persons. There are 66,904 Family Households with an Average Family Size of 3.21 persons. 2.87% of the population is without Health Insurance. The 60.50% Employment Rate is 0.70% above the national average of 59.8%.113,425 people aged 25+ have some educational achievement, with 37.27% (or 42,276 people) having attained a Bachelor's Degree or higher.More Demographics are available below.

There are 2 area codes serving this area including518 and 838. Rensselaer is also located in the Eastern timezone and the current local time is shown above.

Rensselaer is part of the Albany-Schenectady-Troy, NY Core Based Statistical Area (CBSA). Its CBSA Code is 10580.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 Rensselaer, NY have 68,035 Residential mailboxes and 2,976 Business mailboxes.There are 3,010 businesses with a total of 43,822 employees. That is an average of 14.6 employees per business. Annual payroll for these businesses is $2,759,075,000. Other Demographics

Rensselaer County Demographic Profile

Population & People

Total Population

161,130

Income

Median Household Income

$86,663

Housing

Total Housing Units

74,197

Health

Without Healthcare Coverage

2.87%

Business & Economy

Total Businesses

3,010

Families

Total Households

66,904

Employment

Employment Rate

60.50%

Education

Bachelor's Degree or Higher

37.27%

Total Population: Total number of people from the 2020 U.S. Census for Rensselaer, NY. 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.	161,130
Current Population Estimate: This field gives the estimated household population for All ZIP Codes in Rensselaer, NY. 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.	156,911
Total Households: Total number of Households from the 2020 U.S. Census for Rensselaer, NY. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.	66,904
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.	74,197
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.	2.30
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.	3.21

Other Rensselaer Demographics

# Residential Mailboxes: The number of active residential delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	68,035
# Business Mailboxes: The number of active business delivery mailboxes and centralized units. This excludes PO Boxes and all other contract box types.	2,976
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.	83,193
Single Family Delivery Units: Total count of single family mail delivery receptacles; generally analogous to homes.	55,410
Multi Family Delivery Units: Total count of multifamily mail delivery receptacles; generally analogous to apartments.	8,632

# of Businesses: The total number of Business Establishments. Data taken from Business Census 2023.	3,010
1st Quarter Payroll: The total payroll for the first quarter. Data taken from Business Census 2023.	$684,609,000
Annual Payroll: The total annual payroll . Data taken from Business Census 2023.	$2,759,075,000
# of Employees: The total number of employees for all ZIP Codes in this City. Data taken from Business Census 2023.	43,822

Sum of all ZIP Codes assigned Rensselaer, NY 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