PlainZIP

Reisterstown, MD · standard

ZIP Code 21136

Baltimore County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

33,781
233/sq mi
$118,500
Median income
$422,100
Median home value
54.6%
Bachelor's or higher

The verdict

Reisterstown pairs a top-decile household income with upper-quartile home values, in a low-density, homeowner-dominated area.

Top 10%
household income, US ZIPs
Top 19%
home value, US ZIPs
233
people per sq mi
79%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21136 against every reporting US ZIP.

ZIP code 21136 is a densely settled ZIP (a standard USPS delivery area) in Reisterstown, Baltimore County, Maryland, with 33,781 residents across 145.0 square miles, a density of 233 people per square mile, in the New York time zone.

ZIP 21136 skews affluent, with a median household income of $118,500 (4% above the Maryland average), while per-capita income is $59,518. Local economic indicators show a 8.7% poverty rate alongside 4.4% unemployment. Median home value sits at $422,100 (6% below the state average), median rent at $1,524 a month, and owner-occupancy at 79.4%.

This is a highly-educated ZIP: 54.6% of adults hold a bachelor's degree or higher, the median age is 46.3, and the average commute is 29 minutes. To put 21136 in local context, 10 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Baltimore County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 21136

Top 5 sectors by establishment count in Reisterstown, MD

Which industries have the most business establishments in ZIP 21136.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21136, Reisterstown, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

33,781

Population

145.0

Area (sq mi)

233

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 21136?

46.3

Median Age

47.0%

Male

53.0%

Female

14.8%

Foreign-Born

White 55.8%
African American 26.6%
Asian 6.7%
American Indian or Alaska Native 0.1%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.4%
Hispanic or Latino 8.9%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$118,500

Median Household Income

+4% vs state

$59,518

Per Capita Income

8.7%

Poverty Rate

4.4%

Unemployment Rate

28.8 min

Mean Commute Time

How ZIP 21136 ranks nationally

Reisterstown, MD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$118,500 Top 10% higher than 90% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 71.8%
Bachelor's Degree or Higher 54.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

13,837

Total Housing Units

13,048

Occupied Units

789

Vacant Units

2.43

Avg Household Size

Occupancy Type

Owner 79.4%
Renter 20.6%

$422,100

Median Home Value

-6% vs state

$1,524

Median Rent

1981

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+5.0%

YoY Change (2024)

250

HPI Index (2000 = 100)

+150%

Total Change Since 2000

Home values in ZIP 21136 have increased 5.0% over the past year (2024). Since 2000, this ZIP has seen +150% cumulative appreciation.

Year Annual Change HPI Index
2020 +1.6% 178
2021 +10.2% 196
2022 +12.6% 221
2023 +8.0% 238
2024 +5.0% 250

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 708 business establishments in ZIP 21136, employing approximately 6,142 people with a combined annual payroll of $309,489,000.

708

Businesses

6,142

Employees

$309.5M

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 114 16.1%
Construction 97 13.7%
Other services (except public administration) 81 11.4%
Retail trade 78 11.0%
Health care and social assistance 69 9.8%
Administrative and support and waste management and remediation services 54 7.6%
Accommodation and food services 54 7.6%
Transportation and warehousing 32 4.5%
Real estate and rental and leasing 32 4.5%
Finance and insurance 31 4.4%
Wholesale trade 19 2.7%
Educational services 14 2.0%
Arts, entertainment, and recreation 14 2.0%
Information 8 1.1%
Manufacturing 4 0.6%
Management of companies and enterprises 3 0.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 21136 vs 21071 →

ZIP 21136 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 21136 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 21136 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 21136 ranks #6 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
21071 Glyndon, MD 497 0.5 mi
21155 Upperco, MD 2,371 5.7 mi
21117 Owings Mills, MD 53,778 4.6 mi
21048 Finksburg, MD 10,650 5.4 mi
21133 Randallstown, MD 29,998 7.9 mi
21030 Cockeysville, MD 24,355 7.5 mi
21074 Hampstead, MD 15,084 9.1 mi
21153 Stevenson, MD 323 7.5 mi
21152 Sparks Glencoe, MD 5,544 7.9 mi
21208 Pikesville, MD 33,917 8.5 mi

More ZIP Codes in Baltimore County

21234 standard
Parkville, MD
Pop: 69,752
21222 standard
Dundalk, MD
Pop: 55,786
21117 standard
Owings Mills, MD
Pop: 53,778
21207 standard
Gwynn Oak, MD
Pop: 48,133
21228 standard
Catonsville, MD
Pop: 47,577
21221 standard
Essex, MD
Pop: 42,154

Related Areas

Baltimore County Reisterstown, MD Maryland

Frequently Asked Questions

What county is ZIP code 21136 in? ▼
ZIP code 21136 (Reisterstown) is located in Baltimore County, Maryland. Baltimore County contains multiple ZIP codes, see the full list at /counties/baltimore-md-24005.
What is the population of ZIP code 21136? ▼
ZIP code 21136 in Reisterstown, MD has a population of 33,781 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21136? ▼
The median household income in ZIP 21136 is $118,500, which is 55% above the national average of $76,288.
What is the average home value in ZIP 21136? ▼
The median home value in ZIP 21136 is $422,100, which is 52% above the national average of $278,155.
What is the demographic makeup of ZIP 21136? ▼
The largest racial group in ZIP 21136 is White at 55.8%. Hispanic or Latino residents make up 8.9% of the population.
How many businesses are in ZIP code 21136? ▼
ZIP code 21136 has 708 business establishments employing approximately 6,142 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21136? ▼
The top industries by establishment count in ZIP 21136 are: Professional, scientific, and technical services (114), Construction (97), Other services (except public administration) (81). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 21136? ▼
According to the FHFA House Price Index, home values in ZIP 21136 increased by 5.0% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 150%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 21136? ▼
In ZIP code 21136, 71.8% of residents aged 25+ have a high school diploma or higher, and 54.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 21136? ▼
The mean commute time for workers in ZIP code 21136 is 28.8 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 21136? ▼
In ZIP code 21136, approximately 79.4% of occupied housing units are owner-occupied and 20.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21136? ▼
The poverty rate in ZIP code 21136 is 8.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.