PlainZIP

Glyndon, MD · standard

ZIP Code 21071

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

497
194/sq mi
$213,500
Median income
$450,500
Median home value
83.3%
Bachelor's or higher

The verdict

Glyndon pairs a top-decile household income with upper-quartile home values, in a rural, homeowner-dominated area.

Top 1%
household income, US ZIPs
Top 16%
home value, US ZIPs
194
people per sq mi
100%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21071 against every reporting US ZIP.

ZIP code 21071 is a sparsely populated ZIP (a standard USPS delivery area) in Glyndon, Baltimore County, Maryland, home to just 497 residents across 2.6 square miles, a density of 194 people per square mile, in the New York time zone.

ZIP 21071 skews affluent, with a median household income of $213,500 (87% above the Maryland average), while per-capita income is $64,007. The poverty rate stands at 4.2% and the unemployment rate at 0.0%. Housing costs here run $450,500 for a typical home value (1% above the state average), with rent averaging - a month; 100.0% of homes are owner-occupied.

This is a highly-educated ZIP: 83.3% of adults hold a bachelor's degree or higher, the median age is 33, and the average commute is -. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 21071, plus 6 more within Baltimore County, give a clearer read than the national average alone.

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 21071

Top 5 sectors by establishment count in Glyndon, MD

Which industries have the most business establishments in ZIP 21071.

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 21071, Glyndon, 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

497

Population

2.6

Area (sq mi)

194

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 21071?

33.0

Median Age

43.1%

Male

56.9%

Female

2.2%

Foreign-Born

White 92.8%
African American 0.0%
Asian 2.2%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 5.0%
Hispanic or Latino 0.0%

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?

$213,500

Median Household Income

+87% vs state

$64,007

Per Capita Income

4.2%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 21071 ranks nationally

Glyndon, MD household income vs. every US ZIP code

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

$213,500 Top 1% higher than 99% 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%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). Below this entry. $160,000–$180,000: 364 US ZIPs (1%). Below this entry. $180,000–$200,000: 186 US ZIPs (1%). Below this entry. $200,000–$220,000: 324 US ZIPs (1%). This entry sits in this band. 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 94.8%
Bachelor's Degree or Higher 83.3%

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

What does housing look like?

130

Total Housing Units

130

Occupied Units

0

Vacant Units

3.11

Avg Household Size

Occupancy Type

Owner 100.0%
Renter 0.0%

$450,500

Median Home Value

+1% vs state

1938

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 32 business establishments in ZIP 21071, employing approximately 606 people with a combined annual payroll of $35,119,000.

32

Businesses

606

Employees

$35.1M

Annual Payroll

7

Industry Sectors

Industry Establishments % of Total
Retail trade 5 15.6%
Professional, scientific, and technical services 4 12.5%
Health care and social assistance 4 12.5%
Other services (except public administration) 4 12.5%
Construction 3 9.4%
Administrative and support and waste management and remediation services 3 9.4%
Accommodation and food services 3 9.4%

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 21071 vs 21136 →

ZIP 21071 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 21071 ranks #0 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 21071 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 21071 ranks #2 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
21136 Reisterstown, MD 33,781 0.5 mi
21117 Owings Mills, MD 53,778 4.2 mi
21155 Upperco, MD 2,371 6.2 mi
21133 Randallstown, MD 29,998 7.4 mi
21048 Finksburg, MD 10,650 5.4 mi
21030 Cockeysville, MD 24,355 7.7 mi
21074 Hampstead, MD 15,084 9.5 mi
21153 Stevenson, MD 323 7.3 mi
21244 Windsor Mill, MD 34,611 10.4 mi
21208 Pikesville, MD 33,917 8.1 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 Glyndon, MD Maryland

Frequently Asked Questions

What county is ZIP code 21071 in? ▼
ZIP code 21071 (Glyndon) 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 21071? ▼
ZIP code 21071 in Glyndon, MD has a population of 497 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21071? ▼
The median household income in ZIP 21071 is $213,500, which is 180% above the national average of $76,288.
What is the average home value in ZIP 21071? ▼
The median home value in ZIP 21071 is $450,500, which is 62% above the national average of $278,155.
What is the demographic makeup of ZIP 21071? ▼
The largest racial group in ZIP 21071 is White at 92.8%.
How many businesses are in ZIP code 21071? ▼
ZIP code 21071 has 32 business establishments employing approximately 606 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 21071? ▼
The top industries by establishment count in ZIP 21071 are: Retail trade (5), Professional, scientific, and technical services (4), Health care and social assistance (4). There are 7 industry sectors represented in total.
What is the education level in ZIP code 21071? ▼
In ZIP code 21071, 94.8% of residents aged 25+ have a high school diploma or higher, and 83.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the poverty rate in ZIP code 21071? ▼
The poverty rate in ZIP code 21071 is 4.2% 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.