Ridgely, MD 21660 ZIP Code Profile

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Ridgely, MD

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ZIP Code 21660: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Ridgely, MD 21660

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 106
  • Single Family Addresses: 1,325
  • Multi-Family Addresses: 0
  • County: Caroline County
  • Centroid: Latitude 38.943, Longitude -75.89
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


21660 ZIP Code Map

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Ridgely, MD 21660 Data & Demographics (As of July 1, 2017)


Total Population 4,315
Daytime Population: Workers 2,133
Daytime Population: Residents 2,165
Total Daytime Population (TDP) 4,298
Ratio TDP/Total Population1 1.00
Population in Households 4,199
Population in Familes 3,513
Population in Group Qrtrs 116
Population Density2 135
Diversity Index3 46


Median Household Income $61,771
Average Household Income $76,590
Per Capita Income $27,402


Total Housing Units 1,599 (100%)
Owner Occupied HU 1,096 (68.5%)
Renter Occupied HU 404 (25.3%)
Vacant Housing Units 99 ( 6.2%)
Median Home Value $237,991
Average Home Value $303,399


Total Households 1,500
Average Household Size 2.8
Family Households 1,078
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 0.8% 0.55%
Households 0.77% 0.55%
Families 0.66% 0.48%
Median Household Income   1.43%
Per Capita Income   2.73%

Ridgely, MD 21660 - Peer Comparisons by Rank and Percentile

The table below compares 21660 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 # 249 46th
Population Density # 328 28th
Diversity Index # 181 61st
Median Household Income # 314 31st
Per Capita Income # 358 22nd

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

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