PlainZIP

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 covers 3.7 square miles in Solomons, Calvert County, Maryland (a standard USPS delivery area), with a modest 1,828 residents on file, a density of 493 people per square mile, in the New York time zone.

ZIP 20688 lands in the middle-income range, with a median household income of $102,950 (10% below the Maryland average), while per-capita income is $58,614. Local economic indicators show a 0.2% poverty rate alongside 8.4% unemployment. The typical home here is valued at $619,200 (38% above the state average); renters pay a median of $3,222 monthly, and 48.5% of units are owner-occupied.

A solid share of residents have a four-year degree: 42.6% of adults hold a bachelor's degree or higher, the median age is 63.8, and the average commute is -. A geography-based comparison follows: 10 ZIP codes within about 10 miles of 20688, plus 6 more within Calvert 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 20688

Top 5 sectors by establishment count in Solomons, MD

Which industries have the most business establishments in ZIP 20688.

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 20688, Solomons, 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

1,828

Population

3.7

Area (sq mi)

493

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 20688?

63.8

Median Age

40.1%

Male

59.9%

Female

4.1%

Foreign-Born

White 97.8%
African American 0.2%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.9%
Hispanic or Latino 1.9%

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?

$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

Solomons, MD 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

$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 60.0%
Bachelor's Degree or Higher 42.6%

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

Owner 48.5%
Renter 51.5%

$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.

residents

What this shows Among its immediate neighbors, ZIP 20688 ranks #7 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 20688 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 20688 ranks #8 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
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

20657 standard
Lusby, MD
Pop: 20,483
20639 standard
Huntingtown, MD
Pop: 14,227
20678 standard
Prince Frederick, MD
Pop: 11,045
20732 standard
Chesapeake Beach, MD
Pop: 9,919
20736 standard
Owings, MD
Pop: 8,904
20754 standard
Dunkirk, MD
Pop: 6,951

Related Areas

Calvert County Solomons, MD Maryland

Frequently Asked Questions

What county is ZIP code 20688 in? ▼
ZIP code 20688 (Solomons) is located in Calvert County, Maryland. Calvert County contains multiple ZIP codes, see the full list at /counties/calvert-md.
What is the population of ZIP code 20688? ▼
ZIP code 20688 in Solomons, MD has a population of 1,828 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 20688? ▼
The median household income in ZIP 20688 is $102,950, which is 35% above the national average of $76,288.
What is the average home value in ZIP 20688? ▼
The median home value in ZIP 20688 is $619,200, which is 123% above the national average of $278,155.
What is the demographic makeup of ZIP 20688? ▼
The largest racial group in ZIP 20688 is White at 97.8%. Hispanic or Latino residents make up 1.9% of the population.
How many businesses are in ZIP code 20688? ▼
ZIP code 20688 has 108 business establishments employing approximately 1,564 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 20688? ▼
The top industries by establishment count in ZIP 20688 are: Accommodation and food services (28), Health care and social assistance (16), Other services (except public administration) (13). There are 9 industry sectors represented in total.
What is the education level in ZIP code 20688? ▼
In ZIP code 20688, 60.0% of residents aged 25+ have a high school diploma or higher, and 42.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 20688? ▼
In ZIP code 20688, approximately 48.5% of occupied housing units are owner-occupied and 51.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 20688? ▼
The poverty rate in ZIP code 20688 is 0.2% 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.