44121 ZIP Code, Cleveland, OH

44121 is a ZIP code in Cleveland, Ohio in Cuyahoga County. It covers 6.4 square miles of land. The closest ZIP codes are 44118, 44112 and 44117. 32,312 people live here in 13,232 households, more than in 9 of every 10 Ohio ZIP codes. At about 5,081 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (75%). Median household income is $76,767, close to the Ohio median of $71,389.

Quick facts

Key figures

MeasureValue
Residents32,312
Households13,232
Median household income$76,767
Income per person$39,077
Median age37.4
Homeowners74.5%
Median home value$144,800
Median rent$1,156
Bachelor's degree or higher41.6%
Average commute (minutes)25.8
Households with kids under 1826.6%
Moved in the past year11.3%
Below the poverty line8.9%
Broadband internet93.3%
Speak a non-English language at home6.6%

Household income

% of householdsValue
<$10K5.8%
$10–15K1.5%
$15–25K6.3%
$25–35K6.8%
$35–50K10.9%
$50–75K18.1%
$75–100K18.3%
$100–150K15.8%
$150–200K10.2%
$200K+6.3%

Age

% of all residentsValue
<1012.5%
10–1912.2%
20–247.0%
25–3413.9%
35–4412.3%
45–5410.5%
55–6413.2%
65–7410.7%
75+7.8%

Tenure

% of housing unitsValue
Owned, with mortgage44.3%
Owned outright24.3%
Rented22.7%
Vacant8.6%

Type of building

% of housing unitsValue
Detached house82.8%
Townhome2.0%
2–4 units2.6%
5–19 units7.3%
20+ units5.1%
Mobile / other0.1%

Businesses in 44121

445 business establishments with 5,158 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

44121 has 31 USPS carrier routes with 13,846 residential and 543 business mailboxes. Open the EDDM route map.

Carrier routes in 44121

44121 has 31 USPS carrier routes (31 city (C)) with 13,846 residential and 543 business mailboxes. Routes range from 280 homes (C021) to 612 homes (C046); the median route has 451 homes. The Census counted 13,232 households in 44121 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–49925
500–7496
750–9990
1,000–1,4990
1,500+0

Best routes in 44121 for…

Most businesses

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

  1. Route C048 — USPS business mailboxes 106, 499 homes
  2. Route C005 — USPS business mailboxes 93, 303 homes
  3. Route C037 — USPS business mailboxes 81, 416 homes
  4. Route C041 — USPS business mailboxes 64, 442 homes
  5. Route C047 — USPS business mailboxes 44, 481 homes

Select these 5 routes on the route map

Every carrier route in 44121

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C002City30732$69,119———
C004City4561$73,992———
C005City30393$112,282———
C007City4510$80,552———
C008City43914$95,553———
C010City5652$47,628———
C012City4095$69,703———
C014City4512$74,593———
C015City4753$41,126———
C018City46521$41,126———
C019City4950$73,992———
C021City2802$112,282———
C022City4050$61,392———
C023City41834$112,307———
C024City4531$42,238———
C025City4090$73,992———
C027City4770$58,592———
C029City4060$80,552———
C030City4292$44,237———
C035City5060$91,207———
C036City4130$62,897———
C037City41681$67,647———
C039City5401$69,224———
C041City44264$112,282———
C042City5272$73,992———
C043City42728$99,068———
C044City5331$41,126———
C046City6123$44,237———
C047City48144$64,411———
C048City499106$62,897———
C049City3571$69,224———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 44121 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 44121

Where it ranks

Mail every home in 44121

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.

Cleveland EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 44121, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 44121 in?
44121 is a Cleveland, OH mailing address. By land area, 62% lies inside South Euclid, 30% lies inside Cleveland Heights, 7% lies inside Cleveland and 1% lies inside University Heights.
What county is 44121 in?
44121 is in Cuyahoga County.
What is the population of 44121?
About 32,312 people (±1,543), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 32,887.
What is the median household income in 44121?
$76,767 (±$4,948), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 44121?
31 USPS carrier routes with 13,846 residential and 543 business mailboxes (14,391 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 44121?
The closest, measured center to center: 44118 (2.1 mi, Cleveland Heights), 44112 (2.3 mi, East Cleveland), 44117 (3.1 mi, Euclid), 44110 (3.4 mi, Cleveland), 44143 (3.5 mi, Highland Heights) and 44124 (3.7 mi, Pepper Pike).

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