Median household income (1999): $106,139
Estimated median household income in 2005: $130,492
| This zip code | $130,492 | | Maryland: | $61,592 |
Nearest zip codes: 21737, 21723, 21794, 21036, 21797, 20862.
Housing units in zip code 21738 with a mortgage: 622 (62 second mortgage, 154 home equity loan, 0 both second mortgage and home equity loan)
Houses without a mortgage: 78
Median monthly owner costs for units with a mortgage: $2,308
Median monthly owner costs for units without a mortgage: $450
Residents with income below the poverty level in 1999:
| This zip code: | 0.0% | | Whole state: | 8.5% |
Residents with income below 50% of the poverty level in 1999:
| This zip code: | 0.0% | | Whole state: | 4.2% |
Median number of rooms in houses and condos:
| Here: | 9.1 | | State: | 6.9 |
Median number of rooms in apartments:
| Here: | 9.1 | | State: | 4.2 |
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Tourist attractions (not listed on the city page) : Howard County Libraries - Glenwood Branch- Childrens Services (Cultural Attractions- Events- & Facilities; 2350 Route 97 Cooksville), Howard County Libraries - Glenwood Branch- Circulation (Cultural Attractions- Events- & Facilities; 2350 Route 97 Cooksville).
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Year house built:
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- 1999 to March 2000: 34
- 1995 to 1998: 215
- 1990 to 1994: 65
- 1980 to 1989: 189
- 1970 to 1979: 145
- 1960 to 1969: 52
- 1950 to 1959: 63
- 1940 to 1949: 7
- 1939 or earlier: 92
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Bedrooms in owner-occupied houses in 21738:
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- no bedroom: 0
- 1 bedrooms: 0
- 2 bedrooms: 9
- 3 bedrooms: 200
- 4 bedrooms: 426
- 5 or more bedrooms: 174
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Bedrooms in renter-occupied apartments and housing units:
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- no bedroom: 0
- 1 bedrooms: 0
- 2 bedrooms: 0
- 3 bedrooms: 22
- 4 bedrooms: 8
- 5 or more bedrooms: 7
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Vehicles available in 21738 zip code in owner-occupied houses/condos:
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- no vehicle: 0
- 1 vehicle: 60
- 2 vehicles: 425
- 3 vehicles: 229
- 4 vehicles: 43
- 5 or more vehicles: 52
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Vehicles available in renter-occupied apartments:
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- no vehicle: 0
- 1 vehicle: 7
- 2 vehicles: 30
- 3 vehicles: 0
- 4 vehicles: 0
- 5 or more vehicles: 0
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Estimated household income distribution in 2005:

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Estimate of home value of owner-occupied houses/condos in 2005 in zip code 21738:
- $10,000 to $14,999: 9
- $100,000 to $124,999: 15
- $125,000 to $149,999: 17
- $150,000 to $174,999: 7
- $175,000 to $199,999: 30
- $200,000 to $249,999: 79
- $250,000 to $299,999: 77
- $300,000 to $399,999: 171
- $400,000 to $499,999: 158
- $500,000 to $749,999: 97
- $750,000 to $999,999: 40
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Rent paid by renters in 2000 in zip code 21738:
- $300 to $349: 6
- $400 to $449: 16
- No cash rent: 8
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Estimated median house (or condo) value in 2005 for: - White Non-Hispanic householders: $794,037
- Asian householders: $589,048
- Some other race householders: $749,697
- Two or more races householders: $1,874,244
- Hispanic or Latino householders: $749,697
Housing units in structures:
- One, detached: 822
- One, attached: 31
- 3 or 4: 9

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Means of transportation to work
- Drove a car alone: 1,151 (83%)
- Carpooled: 89 (6%)
- Bus or trolley bus: 8 (1%)
- Subway or elevated: 27 (2%)
- Walked: 12 (1%)
- Worked at home: 100 (7%)
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Travel time to work
- Less than 5 minutes: 10
- 5 to 9 minutes: 73
- 10 to 14 minutes: 35
- 15 to 19 minutes: 74
- 20 to 24 minutes: 128
- 25 to 29 minutes: 96
- 30 to 34 minutes: 210
- 35 to 39 minutes: 203
- 40 to 44 minutes: 91
- 45 to 59 minutes: 184
- 60 to 89 minutes: 121
- 90 or more minutes: 62
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Percentage of zip code residents living and working in this county: 41.6%
Household type by relationship
Households: 2,679
- In family households: 2,587 (637 male householders, 141 female householders)
752 spouses, 915 children (821 natural, 37 adopted, 57 stepchildren), 56 grandchildren, 0 brothers or sisters, 12 parents, 22 other relatives, 52 non-relatives
- In nonfamily households: 92 (47 male householders (40 living alone)), 35 female householders (28 living alone)), 10 nonrelatives
Size of family households: 280 2-persons, 151 3-persons, 241 4-persons, 78 5-persons, 27 6-persons, 1 7-or-more-persons.
Size of nonfamily households: 68 1-person, 14 2-persons.
843 married couples with children.
55 single-parent households (14 men, 41 women).
95.4% of residents of 21738 zip code speak English at home.
0.9% of residents speak Spanish at home (100% very well).
1.6% of residents speak other Indo-European language at home (100% very well).
2.2% of residents speak Asian or Pacific Island language at home (20% very well, 80% well).
Foreign born population: 115 (4.2%)
(40.0% of them are naturalized citizens)
| This zip code: | 4.2% | | Whole state: | 9.8% |
Most common places of birth for the foreign-born residents:
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- Korea (38%)
- Netherlands (17%)
- United Kingdom (16%)
- Colombia (10%)
- Australia (8%)
- Canada (7%)
- Trinidad and Tobago (3%)
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Year of entry for the foreign-born population
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- 1995 to March 2000: 23
- 1990 to 1994: 28
- 1985 to 1989: 6
- 1980 to 1984: 22
- 1975 to 1979: 0
- 1970 to 1974: 36
- 1970 to 1974: 0
- 1965 to 1969: 0
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First ancestries reported:
- English: 440
- German: 351
- Other groups: 238
- Irish: 224
- Italian: 186
- Polish: 73
- United States or American: 71
- Russian: 63
- Dutch: 60
- European: 49
- French (except Basque): 47
- Scottish: 47
- Ukrainian: 43
- Greek: 39
- Scotch-Irish: 37
- Norwegian: 33
- Portuguese: 31
- Canadian: 24
- Danish: 24
- Czechoslovakian: 20
- Slovak: 17
- British: 10
- Finnish: 9
- Australian: 9
- Swedish: 8
- Croatian: 7
- French Canadian: 7
- Czech: 7



Most commonly used house heating fuel:
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- Electricity (46%)
- Fuel oil, kerosene, etc. (37%)
- Bottled, tank, or LP gas (16%)
- Utility gas (1%)
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Place of birth for U.S.-born residents:
- This state: 1253
- Northeast: 401
- Midwest: 190
- South: 553
- West: 159
57% of the 21738 zip code residents lived in the same house 5 years ago.
Out of people who lived in different houses, 58% lived in this county.
Out of people who lived in different counties, 78% lived in Maryland.
Population in 1990: 1,632. Population change in the 1990s: +1,129 (+69.2%).
Year Householders Moved Into Unit:
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Private vs. public school enrollment:
Students in private schools in grades 1 to 8 (elementary and middle school): 24
| Here: | 7.0% | | Maryland: | 14.8% |
Students in private schools in grades 9 to 12 (high school): 26
| Here: | 9.0% | | Maryland: | 13.3% |
Students in private undergraduate colleges: 7
| Here: | 7.3% | | Maryland: | 21.7% |
School Enrollment by Level of School
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Top industries in this zip code by the number of employees in 2005:
- Administrative and Support and Waste Management and Remediation Services: Landscaping Services (20-49 employees: 2 establishments, 1-4 employees: 4 establishments)
- Arts, Entertainment, and Recreation: Golf Courses and Country Clubs (50-99: 1)
- Professional, Scientific, and Technical Services: Veterinary Services (20-49: 1, 1-4: 3)
- Accommodation and Food Services: Full-Service Restaurants (20-49: 1, 1-4: 1)
- Finance and Insurance: Real Estate Credit (20-49: 1, 1-4: 1)
- Construction: Highway, Street, and Bridge Construction (20-49: 1)
- Construction: Plumbing, Heating, and Air-Conditioning Contractors (10-19: 1, 5-9: 1)
- Health Care and Social Assistance: Offices of Physical, Occupational and Speech Therapists, and Audiologists (10-19: 1)
- Construction: Electrical Contractors (5-9: 1, 1-4: 4)
Age and Sex of Sensory-Disabled Residents (Noninstitutionalized)
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Age and Sex of Physically-Disabled Residents (Noninstitutionalized)
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Age and Sex of Mentally-Disabled Residents (Noninstitutionalized)
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Age and Sex of Self-Care Disabled Residents (Noninstitutionalized)
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Age and Sex of Go-Outside-Home Disabled Residents (Noninstitutionalized)
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Age and Sex of Residents with Employment Disability (Noninstitutionalized)
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