US5.com
  1. Home
  2. States
  3. Maryland
  4. ZIP 21770
  5. People & Community
Green Valley CDP, MD

ZIP 21770 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Wealthy AreaLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 21770

21770 has a population of 7,815 with a median age of 41.2 yrs (50.3% male).

Race & Ethnicity
White
76.3%+24% vs US avg
x
Black
5.0%-60% vs US avg
x
Asian
12.0%+103% vs US avg
x
Hispanic
3.9%-79% vs US avg
x
Other / Two+
2.8%
x
Age Groups
0–17
21.8%-1% vs US avg
x
18–64
59.2%-4% vs US avg
x
65+
18.9%+16% vs US avg
x
Education
Less than HS
1.5%-86% vs US avg
x
High school
17.6%-33% vs US avg
x
Some college
26.4%-9% vs US avg
x
Bachelor's+
54.5%+62% vs US avg
x
Marital Status
Married
72.2%+50% vs US avg
x
Never married
20.7%-39% vs US avg
x
Divorced
3.5%-66% vs US avg
x
Widowed / Separated
3.7%
x
Diversity Index
40/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
1.4%-88% vs US avg
x
Foreign Born
31.0%+123% vs US avg
x
Veterans
8.0%+34% vs US avg
x
Disability
10.8%-19% vs US avg
x
Single Parent
2.5%-69% vs US avg
x
Recent Births
67.4%+1062% vs US avg
x
Top ancestry
GermanIrishEnglish

Health & Community Indicators in 21770

Poverty Rate
1.4%-88% vs US avg
x
Veterans
8.0%+34% vs US avg
x
Foreign Born
31.0%+123% vs US avg
x
Single Parent
2.5%-69% vs US avg
x
Disability
10.8%-19% vs US avg
x
Uninsured
2.1%-74% vs US avg
x
SNAP Benefits
4.2%-64% vs US avg
x
Private School
0.8%-92% vs US avg
x
Recent Births
67.4%+1062% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population7,815
Median age41.2
Poverty rate1.4%
Demographics statistics
Demographics
White76.3%
Hispanic3.9%
Black5.0%
Asian12.0%
Foreign-born31.0%