Dowell, MD 20629 ZIP Code Profile

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Dowell, MD

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ZIP Code 20629: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Dowell, MD 20629

  • ZIP Code Type: PO BOX
  • County: Calvert County
  • Centroid: Latitude 38.341, Longitude -76.454
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes
  • Businesses Addresses: 14
  • PO Box Addresses: 234
  • Residential Addresses: 1
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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20629 ZIP Code Map

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Dowell, MD 20629 Data & Demographics (As of July 1, 2017)


Total Population 854
Daytime Population: Workers 535
Daytime Population: Residents 491
Total Daytime Population (TDP) 1,026
Ratio TDP/Total Population1 1.20
Population in Households 809
Population in Familes 598
Population in Group Qrtrs 45
Population Density2 1,132
Diversity Index3 30


Median Household Income $99,497
Average Household Income $141,942
Per Capita Income $61,775


Total Housing Units 481 (100%)
Owner Occupied HU 234 (48.6%)
Renter Occupied HU 126 (26.2%)
Vacant Housing Units 121 (25.2%)
Median Home Value $498,333
Average Home Value $606,410


Total Households 360
Average Household Size 2.25
Family Households 207
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.46% 1.48%
Households 1.51% 1.56%
Families 1.41% 1.5%
Median Household Income   2.22%
Per Capita Income   2.09%

Dowell, MD 20629 - Peer Comparisons by Rank and Percentile

The table below compares 20629 to the other 456 ZIP Codes in Maryland by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 364 20th
Population Density # 150 67th
Diversity Index # 299 34th
Median Household Income # 122 73rd
Per Capita Income # 28 94th

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.

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