21093 ZIP Code, Lutherville Timonium, MD

21093 is a ZIP code in Lutherville Timonium, Maryland in Baltimore County. It covers 20 square miles of land. The closest ZIP codes are 21204, 21153 and 21252. 39,100 people live here in 15,688 households. At about 1,933 people per square mile it has suburban density, and most homes are owner-occupied (79%). Median household income is $125,528, above the Maryland median of $103,678; the median age is 45.3, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents39,100
Households15,688
Median household income$125,528
Income per person$67,017
Median age45.3
Homeowners78.8%
Median home value$477,700
Median rent$1,593
Bachelor's degree or higher69.7%
Average commute (minutes)24.7
Households with kids under 1827.9%
Moved in the past year11.7%
Below the poverty line4.9%
Broadband internet94.6%
Speak a non-English language at home14.9%

Household income

% of householdsValue
<$10K2.7%
$10–15K1.0%
$15–25K2.9%
$25–35K5.6%
$35–50K6.6%
$50–75K12.0%
$75–100K9.1%
$100–150K17.1%
$150–200K15.8%
$200K+27.1%

Age

% of all residentsValue
<109.5%
10–1913.7%
20–243.5%
25–3411.0%
35–4411.6%
45–5412.4%
55–6414.2%
65–7412.8%
75+11.1%

Tenure

% of housing unitsValue
Owned, with mortgage46.9%
Owned outright28.8%
Rented19.9%
Vacant4.4%

Type of building

% of housing unitsValue
Detached house56.8%
Townhome12.3%
2–4 units0.8%
5–19 units20.8%
20+ units8.8%
Mobile / other0.4%

Businesses in 21093

1,645 business establishments with 23,648 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

21093 has 37 USPS carrier routes with 16,590 residential and 1,484 business mailboxes. Open the EDDM route map.

Carrier routes in 21093

21093 has 37 USPS carrier routes (31 city (C), 6 rural (R)) with 16,590 residential and 1,484 business mailboxes. Routes range from 1 homes (C001) to 824 homes (C007); the median route has 451 homes. The Census counted 15,688 households in 21093 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2495
250–49922
500–7499
750–9991
1,000–1,4990
1,500+0

Best routes in 21093 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C001 — USPS business mailboxes 213, 1 homes
  2. Route C025 — USPS business mailboxes 200, 380 homes
  3. Route C034 — USPS business mailboxes 199, 130 homes
  4. Route R004 — USPS business mailboxes 153, 242 homes
  5. Route C038 — USPS business mailboxes 135, 228 homes

Select these 5 routes on the route map

Every carrier route in 21093

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City1213$123,947———
C002City4041$172,432———
C003City3740$132,713———
C005City6550$122,003———
C007City8240$82,325———
C010City7021$137,878———
C015City5322$154,483———
C016City36574$123,947———
C017City4663$132,713———
C018City3211$122,003———
C020City46723$172,432———
C021City36626$123,947———
C022City6600$64,539———
C023City7153$154,706———
C025City380200$103,770———
C027City4820$141,100———
C028City28262$165,360———
C029City4651$154,706———
C030City43514$123,947———
C031City6400$154,706———
C032City204120$103,770———
C033City4324$127,125———
C034City130199$103,770———
C036City48211$141,100———
C037City26386$102,704———
C038City228135$113,722———
C039City73410$127,125———
C040City7424$80,393———
C042City49135$80,393———
C044City38230$113,722———
C045City3814$150,651———
R001Rural4782$178,983———
R002Rural35856$186,532———
R003Rural4617$150,718———
R004Rural242153$200,001+———
R005Rural5954$150,718———
R007Rural4510$141,100———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 21093 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 21093

Where it ranks

Mail every home in 21093

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 21093, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 21093 in?
21093 is a Lutherville Timonium, MD mailing address. By land area, 28% lies inside Timonium, 18% lies inside Mays Chapel, 10% lies inside Lutherville and 5% lies inside Pikesville; the rest is outside any Census-defined city or community.
What county is 21093 in?
21093 is in Baltimore County.
What is the population of 21093?
About 39,100 people (±1,907), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 38,677.
What is the median household income in 21093?
$125,528 (±$12,232), compared with $103,678 for Maryland as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 21093?
37 USPS carrier routes with 16,590 residential and 1,484 business mailboxes (18,077 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 21093?
The closest, measured center to center: 21204 (2.3 mi, Towson), 21153 (3.4 mi, Pikesville), 21252 (3.4 mi, Towson), 21031 (3.5 mi, Cockeysville), 21285 (3.7 mi, Towson) and 21286 (4.1 mi, Hampton).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.