Solomons, MD · standard
ZIP Code 20688
Calvert County, Maryland — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,828
- 493/sq mi
- $102,950
- Median income
- $619,200
- Median home value
- 42.6%
- Bachelor's or higher
The verdict
Solomons pairs an upper-quartile household income with top-decile home values, in a low-density, mixed-tenure area.
- Top 17%
- household income, US ZIPs
- Top 8%
- home value, US ZIPs
- 493
- people per sq mi
- 49%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 20688 against every reporting US ZIP.
ZIP code 20688 is classified by USPS as a standard delivery area and covers roughly 3.7 square miles in Solomons, Calvert County, Maryland. The area is home to 1,828 residents, producing a population density of 493 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 20688 against Maryland and the nation.
On the economic side, the median household income for ZIP 20688 sits at $102,950 (10% below the Maryland average), while per-capita income is $58,614. The poverty rate stands at 0.2% and the unemployment rate at 8.4%. On housing, the median home value is $619,200 (38% above the state average) with median rent at $3,222 per month, and 48.5% of occupied units are owner-occupied, a direct signal of whether 20688 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 42.6% of adults hold a bachelor's degree or higher, the median age is 63.8, and the average commute is —. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Calvert County, so you can benchmark 20688 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 20688
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 20688.
- Accommodation and food services
Accommodation and food services
28 establishments
- Health care and social assistance
Health care and social assistance
16 establishments
- Other services (except public administration)
Other services (except public administration)
13 establishments
- Retail trade 11
Retail trade
11 establishments
- Real estate and rental and leasing 9
Real estate and rental and leasing
9 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 20688, Solomons, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
1,828
Population
3.7
Area (sq mi)
493
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 20688?
63.8
Median Age
40.1%
Male
59.9%
Female
4.1%
Foreign-Born
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?
$102,950
Median Household Income
-10% vs state
$58,614
Per Capita Income
0.2%
Poverty Rate
8.4%
Unemployment Rate
How ZIP 20688 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$102,950 Top 17% higher than 83% of 30,318 US ZIPs
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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
717
Total Housing Units
651
Occupied Units
66
Vacant Units
1.89
Avg Household Size
Occupancy Type
$619,200
Median Home Value
+38% vs state
$3,222
Median Rent
1997
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 108 business establishments in ZIP 20688, employing approximately 1,564 people with a combined annual payroll of $56,530,000.
108
Businesses
1,564
Employees
$56.5M
Annual Payroll
9
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 28 | 25.9% |
| Health care and social assistance | 16 | 14.8% |
| Other services (except public administration) | 13 | 12.0% |
| Retail trade | 11 | 10.2% |
| Real estate and rental and leasing | 9 | 8.3% |
| Professional, scientific, and technical services | 9 | 8.3% |
| Arts, entertainment, and recreation | 7 | 6.5% |
| Construction | 5 | 4.6% |
| Finance and insurance | 3 | 2.8% |
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 20688 vs 20629 →
ZIP 20688 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20653
Lexington Park (20653)
24,481 residents
- 20657
Lusby (20657)
20,483 residents
- 20619
California (20619)
10,503 residents
- 20636
Hollywood (20636)
9,937 residents
- 20685 6,471
Saint Leonard (20685)
6,471 residents
- 20634 5,927
Great Mills (20634)
5,927 residents
- 20688 1,828
Solomons (20688)
1,828 residents
- 20620 1,443
Callaway (20620)
1,443 residents
- 20670 1,014
Patuxent River (20670)
1,014 residents
What this shows Among its immediate neighbors, ZIP 20688 ranks #7 by population — useful context the national average alone can't give.
ZIP 20688 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 20620
Callaway (20620)
$165,972 median income
- 20636
Hollywood (20636)
$163,690 median income
- 20634
Great Mills (20634)
$139,375 median income
- 20619
California (20619)
$119,432 median income
- 20685
Saint Leonard (20685)
$119,135 median income
- 20657
Lusby (20657)
$115,748 median income
- 20653
Lexington Park (20653)
$103,048 median income
- 20688
Solomons (20688)
$102,950 median income
- 20629
Dowell (20629)
$87,389 median income
What this shows By household income, ZIP 20688 ranks #8 of 9 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 20629 | Dowell, MD | 535 | 0.9 mi |
| 20657 | Lusby, MD | 20,483 | 3.5 mi |
| 20670 | Patuxent River, MD | 1,014 | 4.5 mi |
| 20619 | California, MD | 10,503 | 4.4 mi |
| 20636 | Hollywood, MD | 9,937 | 5.6 mi |
| 20634 | Great Mills, MD | 5,927 | 6.5 mi |
| 20653 | Lexington Park, MD | 24,481 | 7.5 mi |
| 20667 | Park Hall, MD | 494 | 8.3 mi |
| 20620 | Callaway, MD | 1,443 | 7.8 mi |
| 20685 | Saint Leonard, MD | 6,471 | 7.6 mi |
More ZIP Codes in Calvert County
Related Areas
Frequently Asked Questions
What county is ZIP code 20688 in? ▼
What is the population of ZIP code 20688? ▼
What is the median household income in ZIP 20688? ▼
What is the average home value in ZIP 20688? ▼
What is the demographic makeup of ZIP 20688? ▼
How many businesses are in ZIP code 20688? ▼
What are the main industries in ZIP code 20688? ▼
What is the education level in ZIP code 20688? ▼
What percentage of residents own vs. rent in ZIP 20688? ▼
What is the poverty rate in ZIP code 20688? ▼
ZIP Code Research Guides
Official Data Resources for Solomons, MD
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.