US > Maryland > Carroll County > Keymar, MD 21757

Keymar, MD 21757 ZIP Code Profile

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Detour, MD | Keymar, MD | Middleburg, MD

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ZIP Code 21757: Basic Data & USPS Preferred City Name

Preferred Name, USPS

Keymar, MD 21757

Acceptable Alternative

Detour, MD 21757

Middleburg, MD 21757

ZIP Code Type: STANDARD
County: Carroll County
Centroid: Latitude 39.601, Longitude -77.254
Time Zone: Eastern Time Zone (UTC -5 hours)
Observes DST: Yes

ZIP Code 21757 has segments in 2 Counties / Independent Cities (Carroll, Frederick).

Businesses Addresses: 44
PO Box Addresses: 67
Residential Addresses: 1,047

Multi-Family Addresses: 0
Single Family Addresses: 1,047

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

EXTREMELY LOCAL Demographic Data

21757 ZIP Code Map

Keymar, MD 21757 Data & Demographics (As of July 1, 2017)

POPULATION
Total Population	3,076
Daytime Population: Workers	485
Daytime Population: Residents	1,433
Total Daytime Population (TDP)	1,918
Ratio TDP/Total Population¹	0.62
Population in Households	3,042
Population in Familes	2,618
Population in Group Qrtrs	34
Population Density²	88
Diversity Index³	18

INCOME
Median Household Income	$68,138
Average Household Income	$85,448
Per Capita Income	$31,522

HOUSING
Total Housing Units	1,184 (100%)
Owner Occupied HU	860 (72.6%)
Renter Occupied HU	260 (22.0%)
Vacant Housing Units	64 ( 5.4%)
Median Home Value	$319,196
Average Home Value	$353,547

HOUSEHOLDS
Total Households	1,120
Average Household Size	2.72
Family Households	862
Average Family Size	3

NOTES

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.
Population Density = Total Population per square mile.
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.

GROWTH RATE / YEAR	2010-2017	2017-2022
Population	0.47%	0.6%
Households	0.49%	0.58%
Families	0.37%	0.51%
Median Household Income		2.51%
Per Capita Income		3.01%

Keymar, MD 21757 - Peer Comparisons by Rank and Percentile

The table below compares 21757 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.