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21152
  1. Home
  2. ZIP Codes
  3. ZIP Code 21152
Maryland (MD)Baltimore CountyBaltimore-Columbia-Towson410443667

ZIP Code 21152 — Sparks Glencoe, MD

Baltimore County * Baltimore-Columbia-Towson metro

Compare

6.5K

Population

$121.3K

Median income

per household

$495.7K

Home value

1.9%

Poverty rate

What stands out

  • Median household income: $121.3K (top 10% vs US ZIP codes).
  • Median home value: $495.7K (top quartile vs US ZIP codes).
  • Poverty rate: 1.9% (low poverty; bottom 10% vs US ZIP codes).

Categories vs U.S.

Economy

5 of 5 metrics better than U.S. benchmarks

Median household income

$121.3K

U.S.

$81K

Per-capita income

$74.4K

U.S.

$45K

Median home value

$495.7K

U.S.

$333K

Housing stress

Rent-burdened renters (≥30%)

25.1%

U.S.

51.1%

Severely rent-burdened (≥50%)

5.2%

U.S.

25.9%

Affordability Ratios

Rent-to-Income

16.4%

Below 30% threshold

Home-Value-to-Income

4.1×

Upper end of typical range

Income distribution

Share of households by income bracket (ACS).

< $50k
11.4%
$50–100k
31.1%
$100–200k
31.6%
$200k+
25.9%

Health

6 of 6 available metrics better than U.S.

CDC PLACES modeled ZCTA-level estimates (adult prevalence).

Obesity

28.7%

U.S.

33.3%

Diabetes

9.4%

U.S.

12.0%

Current smoking

8.1%

U.S.

13.1%

Connectivity

2 of 3 metrics better than U.S.

Best available speed

1,000Mbps

Gigabit speeds reported

100+ Mbps coverage

97.8%

U.S.

85.3%

Gigabit ready

0.3%

U.S.

8.6%

5G available

96.0%

U.S.

77.4%

Learning

Education metrics come from ACS 5-year estimates for ZIP Code Tabulation Areas (ZCTAs).

Bachelor's degree+ (age 25+)

56.4%

U.S.

35.7%

A high share of adults with a bachelor's degree or higher often correlates with higher-paying jobs and knowledge-economy industries.

ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as noise.

School districts

Baltimore County Public Schools

Map

ZIP 21152

Sparks Glencoe, MD

Population

6.5K

Area

24.2 sq mi

Density

266.9/sq mi

Neighbors

21023210302111121120211312113621155
More Details

Census Tracts

5 tracts overlap this ZIP. Hover over segments to explore.

30%
29%
25%
10%
6%

Tract 4050

29.8%

Tract 4081

28.7%

Tract 4082

25.4%

Tract 4101

9.9%

Tract 4070.01

6.2%

Total tracts: 5Coverage: 100.0%

Representation

U.S. House

ZIP codes can span multiple congressional districts. Overlap percentages are approximate by land area. Verify by address.

100%

MD-2

100%

Districts: 1Coverage: 100.0%

Data freshness

ACS 5-Year
2020–2024
CDC PLACES
2025
Broadband
2020-12
Mobile
2025-11-24
Page Updated
2026-02-23

Release schedule and upstream dates: Sources.

Data sources

US Census Bureau (ACS 5-year)HUD USPS ZIP crosswalkUS Census TIGER/Line (geometry inputs)US Census TIGER/Line (school districts)US Census Bureau (ZCTA-to-tract relationship, 2020)US Census Bureau (2020 ZCTA-to-congressional-district relationship file, CD119)CDC PLACES (ZCTA)FCC (Form 477 broadband)FCC (Mobile Broadband Data Collection)

Derived statistics

  • ZIP pages use Census ZIP Code Tabulation Areas (ZCTAs), not USPS delivery routes.
  • Population density is computed as population ÷ land area.
  • Overlap percentages (tracts and districts) are derived from map geometry and are approximate.

Data accuracy & methodology

ZIP pages combine 2020–2024 ACS 5-year ZCTA estimates with other public datasets when available (see Sources). Connectivity metrics use FCC coverage data, not ACS. ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as statistical noise rather than precise changes.