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Howard County · Maryland

ZIP code 21794

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 21794 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
2,326

ZCTA residents

Median income
$223,833

Household, past 12 months

Median home
$977,200

Owner-occupied value

Sales tax
6%

Maryland state rate

Quick answer

ZIP 21794 sits in Howard County, Maryland and is home to 2,326 people. Median household income is $223,833, the median home is worth $977,200 and median gross rent is —. 99.6% of households own their home, and purchases are taxed at 6% (Maryland state rate).

County
Howard County

FIPS 24027

State
Maryland (MD)

477 ZIPs covered

Area codes
Not published

No NANPA match for this ZIP

Metro area
Outside covered metros

Rate jurisdiction used for tax

The numbers for 21794

American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.

Population
2,326ZIP 21794 residents
Median household income
$223,833Past 12 months, inflation adjusted
Median home value
$977,200Owner-occupied units
Median gross rent
—Rent plus utilities, monthly
Median age
42.2 yrsAll residents
Homeownership rate
99.6%Owner-occupied households

ZIP 21794 in context

How this area compares with national benchmarks.

ZIP 21794 is a small town in Howard County, Maryland, with 2,326 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #301 of 477 ranked by population — larger than 36% of them. The median age here is 42.2 years against 39.1 nationally, a slightly older profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in ZIP 21794 earn a median of $223,833 a year, 185% above the national figure of $78,538. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 2.8% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in ZIP 21794 is valued at $977,200, 222.1% above the national figure, while median gross rent runs not published a month. The home-price-to-income ratio works out to 4.4×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 99.6% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

The Census withheld gross rent for ZIP 21794 because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.

Reading ZIP 21794 in context

How 21794 sits inside Howard County and Maryland.

ZIP 21794 is tabulated inside Howard County, Maryland, one of 20 ZIP areas the Census publishes for that county and 477 across Maryland. Fewer than 2,500 people are counted here, so the ZIP behaves like a village delivery route rather than a neighbourhood. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 21794 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 21794 reports a median household income of $223,833, 26% above the $177,874 county median, and 115% above the $104,338 typical MD ZIP. Owner-occupied homes are valued at a median of $977,200, 45% above the county figure and 144% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at not published a month, which is why it reads higher than the advertised rent on a listing for the same unit.

Maryland charges 6% statewide, and no local sales tax is layered on top, so the state rate is the full amount collected in 21794.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 21794 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.

Sales tax in 21794

What a purchase inside this ZIP costs at checkout.

Rate applied
6%State base rate only
Tax on $100
$6Rounded to the dollar
Tax on $1,000
$60Before any exemptions

Maryland levies 6% statewide with no local add-ons. Check the county page for the local component before you quote a price.

Affordability in this ZIP

Derived from the Census medians above — indicative, not an offer.

Rent burden
—Median rent ÷ median income
Price-to-income
4.4×Home value ÷ household income
Est. mortgage
$5,070/mo20% down, 30-yr at 6.75%
Poverty rate
2.8%Residents below poverty line

A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.

How 21794 compares

ZIP 21794 against the median ZIP in Howard County and across Maryland.

MeasureZIP 21794County medianState medianvs state
Median household income$223,833$177,874$104,338+115%
Median home value$977,200$674,700$401,000+144%
Median gross rent—$2,104$1,600—
Population2,3267,7654,995-53%

Medians are computed across the 20 ZIP areas in Howard County and the 477 ZIP areas in Maryland.

Statewide rank

Where this ZIP places among all 477 Maryland ZIP areas.

Income

richer than 97% of 428 state ZIPs

#13
Home value

above 97% of 425 state ZIPs

#11
Population

larger than 37% of 477 state ZIPs

#301

Comparable ZIP codes

Maryland ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
20818Montgomery County$221,392$1,273,300—
20777Howard County$218,808$808,700$2,893
21738Howard County$230,429$889,100—
20816Montgomery County$231,284$1,166,100$2,723
20817Montgomery County$240,104$1,142,300$3,155
20632Charles County$204,071$491,200—

Nearby ZIP codes

Other ZIP codes filed under Howard County.

Adjacent ZIP Codes

Other ZIP codes in Howard County, Maryland.

ZIP 21794 questions

Common questions about this ZIP code.

Where is ZIP code 21794?
ZIP 21794 lies mostly in Howard County, Maryland. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
What sales tax do I pay in 21794?
Maryland charges 6% statewide.
Is 21794 expensive to live in?
Median rent runs — a month, and the median home is worth $977,200 — +144% against the typical Maryland ZIP.
Is a ZCTA the same as a postal ZIP code?
Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.

Related pages for this area.

Sources & transparency

Every figure on this page is a published estimate for ZIP Code Tabulation Area 21794, except the affordability ratios and mortgage estimate, which we derive from those medians and label as estimates.

Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.