US ZIP Code
21555

Oldtown, MD

Allegany County  ·  Maryland

● Active
👥 1,577 Population
🎂 41.7 Median Age ↓ 14% since 2019
🏠 $205,900 Median Home Value
▼ 26% below avg ↑ 53% since 2019
🎓 23.4% College Grads
▼ 40% below avg
📊 13.9% Unemployment
▲ 183% above avg ↑ 96% since 2019
ZIP Code Details
ZIP Code21555
CityOldtown
StateMaryland (MD)
CountyAllegany County
Area Code227/240/301
Elevation640 ft
Latitude39.57514
Longitude-78.562574
TimezoneNew York (DST)
FIPS24001
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 46.7% (737) Female 53.3% (840) ♀

Race & Ethnicity

White: 98.6%Black: 0.8%Other: 0.6%Race
White98.6%
Black0.8%
Other0.6%

Age Breakdown

Under 5
4%
5–17
21%
18–24
1%
25–44
25%
45–64
31%
65+
6%

Key Indicators

Median Age41.7 yrs ↓ 14% since 2019
Avg Household Size2.32
Below Poverty26.1% ▲ 161% above avg
College Grads23.4% ▼ 40% below avg
Unemployment13.9% ▲ 183% above avg
No HS Diploma1 (0.1%)
HS Graduate572 (54.4%)
Some College146 (13.9%)
Associates86 (8.2%)
Bachelors150 (14.3%)
Graduate Degree96 (9.1%)

Education

No HS: 0.1%HS Grad: 54.4%Some College: 13.9%Associates: 8.2%Bachelors: 14.3%Graduate: 9.1%Edu
No HS0.1%
HS Grad54.4%
Some College13.9%
Associates8.2%
Bachelors14.3%
Graduate9.1%
Housing & Income

Housing Tenure

Owner: 76.9%Renter: 23.1%Tenure
Owner76.9%
Renter23.1%

Home Value Distribution

Under $50k
9%
$50k–100k
4%
$100k–150k
21%
$150k–200k
11%
$200k–300k
44%
$300k–500k
11%

Financials

Median Home Value$205,900 ▼ 26% below avg ↑ 53% since 2019
Median Rent$1,054/mo ↑ 29% since 2019
Total Units1,011
Vacant Units332
Avg HH Size2.32

Income Distribution

Under $25k
13%
$25k–50k
36%
$50k–75k
10%
$75k–100k
15%
$100k–150k
25%
$150k–200k
1%
Employment & Commute

How People Get to Work

Drove Alone
96%
Public Transit
2%
Work From Home
2%

Commute Time

Under 15 min
3%
15–30 min
48%
30–45 min
30%
Over 45 min
18%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
8%
1960s–1970s
13%
1980s–1990s
25%
2000+
53%

Summary

Total Units1,011
Vacant332
Owner Occupied76.9%
Renter Occupied23.1%
Avg HH Size2.32
Frequently Asked Questions
ZIP code 21555 is in Oldtown, MD, in Allegany County.
ZIP code 21555 is located in Maryland (MD).
ZIP code 21555 is in Allegany County, MD.
ZIP 21555 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 21555 is 1,577 people (ACS 2023).
Income data not available.
The median home value in ZIP 21555 is $205,900 (ACS 2023).
About ZIP Code 21555

ZIP code 21555 is located in Oldtown, Maryland, within Allegany County. With a population of 1,577, this is a sparsely populated ZIP code with a middle-aged community — the median age is 41.7 years.

Real estate in ZIP code 21555 represents an affordable housing market. The median home value of $205,900 is below the national average. Renters can expect to pay around $1,054 per month in median rent. Homeownership is strong here — 76.9% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 53% since 2019.

The population of 21555 is primarily White (98.60%). Residents are less-educated — 23.4% hold a bachelor's degree or higher, which is below the national average. Poverty affects a significant share of residents at 26.1%.

The unemployment rate in 21555 stands at 13.9%, which is more than double the national average. As in most parts of the country, driving alone is the dominant commute mode at 93%.

Overall, ZIP code 21555 in Oldtown, MD is characterized as less-educated, a middle-aged community, and predominantly owner-occupied.