ZIP Code 21664
| ZIP Code | 21664 |
| City | SECRETARY |
| State | MD |
| Type | PO BOX |
| Post offices count | 1 (see all) |
| Total population | 648 (see all) |
Cities in ZIP Code 21664
Primary city: SECRETARY, MDPost offices
SECRETARY — Post Office™ 145 MAIN ST SECRETARY, MD 21664-9998 MoreSECRETARY — Post Office™145 MAIN ST For facility accessibility, please call the Post Office. 1-800-ASK-USPS® (800-275-8777) Hours
Services at this Location Service hours may vary.
|
Map
Census data for ZIP Code 21664
Demographic and housing estimates in ZIP Code 21664
| Total population | 648 |
| Male | 354 |
| Female | 294 |
| Total population | 648 |
| Under 5 years | 20 |
| 5 to 9 years | 34 |
| 10 to 14 years | 125 |
| 15 to 19 years | 58 |
| 20 to 24 years | 24 |
| 25 to 34 years | 68 |
| 35 to 44 years | 124 |
| 45 to 54 years | 51 |
| 55 to 59 years | 34 |
| 60 to 64 years | 29 |
| 65 to 74 years | 45 |
| 75 to 84 years | 29 |
| 85 years and over | 7 |
| Median age (years) | 33.4 |
| Under 18 years | 214 |
| 16 years and over | 457 |
| 18 years and over | 434 |
| 21 years and over | 404 |
| 62 years and over | 102 |
| 65 years and over | 81 |
| Total population | 648 |
| One race | 598 |
| White | 464 |
| Black or African American | 1 |
| American Indian and Alaska Native | 0 |
| Asian | 0 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 133 |
| Two or more races | 50 |
| Citizen, VOTING AGE 18 and over population | 379 |
| Male Citizen, VOTING AGE 18 and over population | 180 |
| Female Citizen, VOTING AGE 18 and over population | 199 |
Social characteristics in ZIP Code 21664
| Total households | 221 |
| Family households (families) | 92 |
| Married-couple family | 28 |
| Male householder, no wife present, family | 45 |
| Female householder, no husband present, family | 38 |
| Nonfamily households | 56 |
| Average household size | 65 |
| Average family size | 2.93 |
Economic characteristics in ZIP Code 21664
| Total households | 221 |
| Less than $10,000 | 3 |
| $10,000 to $14,999 | 10 |
| $15,000 to $24,999 | 17 |
| $25,000 to $34,999 | 29 |
| $35,000 to $49,999 | 35 |
| $50,000 to $74,999 | 34 |
| $75,000 to $99,999 | 26 |
| $100,000 to $149,999 | 60 |
| $150,000 to $199,999 | 7 |
| $200,000 or more | 0 |
| Median household income (dollars) | 70,288 |
Housing characteristics in ZIP Code 21664
| Total housing units | 259 |
| Occupied housing units | 221 |
| Vacant housing units | 38 |
| Total housing units | 259 |
| 1-unit, detached | 244 |
| 1-unit, attached | 5 |
| 2 units | 8 |
| 3 or 4 units | 0 |
| 5 to 9 units | 0 |
| 10 to 19 units | 0 |
| 20 or more units | 0 |
| Mobile home | 2 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 259 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 0 |
| Built 2000 to 2009 | 12 |
| Built 1990 to 1999 | 5 |
| Built 1980 to 1989 | 42 |
| Built 1970 to 1979 | 57 |
| Built 1960 to 1969 | 9 |
| Built 1950 to 1959 | 20 |
| Built 1940 to 1949 | 15 |
| Built 1939 or earlier | 99 |
| Total housing units | 259 |
| 1 room | 0 |
| 2 rooms | 0 |
| 3 rooms | 2 |
| 4 rooms | 51 |
| 5 rooms | 88 |
| 6 rooms | 67 |
| 7 rooms | 15 |
| 8 rooms | 25 |
| 9 rooms or more | 11 |
| Median rooms | 5.4 |
| Total housing units | 259 |
| No bedroom | 0 |
| 1 bedroom | 14 |
| 2 bedrooms | 74 |
| 3 bedrooms | 151 |
| 4 bedrooms | 15 |
| 5 or more bedrooms | 5 |
| Occupied housing units | 221 |
| Owner-occupied | 143 |
| Renter-occupied | 78 |
| Average household size of owner-occupied unit | 2.27 |
| Average household size of renter-occupied unit | 4.14 |
| Occupied housing units | 221 |
| Moved in 2017 or later | 9 |
| Moved in 2015 to 2016 | 45 |
| Moved in 2010 to 2014 | 44 |
| Moved in 2000 to 2009 | 56 |
| Moved in 1990 to 1999 | 41 |
| Moved in 1989 and earlier | 26 |
| Owner-occupied units | 143 |
| Less than $50,000 | 13 |
| $50,000 to $99,999 | 24 |
| $100,000 to $149,999 | 43 |
| $150,000 to $199,999 | 27 |
| $200,000 to $299,999 | 30 |
| $300,000 to $499,999 | 6 |
| $500,000 to $999,999 | 0 |
| $1,000,000 or more | 0 |
| Median (dollars) | 142,100 |
| Owner-occupied units | 143 |
| Housing units with a mortgage | 93 |
| Housing units without a mortgage | 50 |
| Occupied units paying rent | 78 |
| Less than $500 | 0 |
| $500 to $999 | 33 |
| $1,000 to $1,499 | 39 |
| $1,500 to $1,999 | 6 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 0 |
| Median (dollars) | 1,063 |
| No rent paid | 0 |
Data is based on 2021 Census