63112 ZIP Code, Saint Louis, MO

63112 is a ZIP code in Saint Louis, Missouri in St. Louis city. It covers 3.2 square miles of land. The closest ZIP codes are 63108, 63113 and 63133. 17,985 people live here in 9,094 households. At about 5,668 people per square mile it is built up to city-neighborhood density, and most households rent (36% own). Median household income is $45,542, well below the Missouri median of $70,702; 23% of residents moved in during the past year.

Quick facts

Key figures

MeasureValue
Residents17,985
Households9,094
Median household income$45,542
Income per person$36,337
Median age33.4
Homeowners35.9%
Median home value$212,700
Median rent$937
Bachelor's degree or higher43.9%
Average commute (minutes)19.7
Households with kids under 1817.9%
Moved in the past year22.5%
Below the poverty line26.9%
Broadband internet85.4%
Speak a non-English language at home14.0%

Household income

% of householdsValue
<$10K13.5%
$10–15K11.0%
$15–25K9.4%
$25–35K9.5%
$35–50K8.5%
$50–75K14.4%
$75–100K8.8%
$100–150K11.9%
$150–200K7.0%
$200K+5.9%

Age

% of all residentsValue
<109.9%
10–1910.2%
20–249.3%
25–3423.1%
35–4410.6%
45–549.7%
55–6411.8%
65–749.0%
75+6.4%

Tenure

% of housing unitsValue
Owned, with mortgage16.4%
Owned outright12.2%
Rented50.6%
Vacant20.8%

Type of building

% of housing unitsValue
Detached house30.3%
Townhome4.3%
2–4 units19.7%
5–19 units17.0%
20+ units27.9%
Mobile / other0.9%

Businesses in 63112

238 business establishments with 3,506 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

63112 has 19 USPS carrier routes with 10,520 residential and 366 business mailboxes. Open the EDDM route map.

Carrier routes in 63112

63112 has 19 USPS carrier routes (19 city (C)) with 10,520 residential and 366 business mailboxes. Routes range from 328 homes (C061) to 1,467 homes (C011); the median route has 500 homes. The Census counted 9,094 households in 63112 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4999
500–7498
750–9991
1,000–1,4991
1,500+0

Best routes in 63112 for…

Most businesses

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

  1. Route C093 — USPS business mailboxes 49, 527 homes
  2. Route C015 — USPS business mailboxes 47, 660 homes
  3. Route C060 — USPS business mailboxes 45, 909 homes
  4. Route C011 — USPS business mailboxes 37, 1,467 homes
  5. Route C068 — USPS business mailboxes 28, 456 homes

Select these 5 routes on the route map

Every carrier route in 63112

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C011City1,46737$77,841———
C013City5577$159,872———
C015City66047$48,658———
C025City49611$13,095———
C035City37114$51,026———
C036City55710$67,570———
C042City5276$13,787———
C045City5238$159,872———
C046City4935$22,752———
C048City3659$67,344———
C060City90945$22,752———
C061City32826$29,692———
C064City50015$100,920———
C068City45628$72,467———
C076City3807$42,081———
C085City45425$17,921———
C087City40315$13,095———
C088City5472$77,841———
C093City52749$67,570———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 63112 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 63112

Where it ranks

Mail every home in 63112

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.

St. Louis EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 63112, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 63112 in?
63112 is a Saint Louis, MO mailing address. By land area, 100% lies inside St. Louis.
What county is 63112 in?
63112 is in St. Louis city.
What is the population of 63112?
About 17,985 people (±1,448), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 18,954.
What is the median household income in 63112?
$45,542 (±$8,441), compared with $70,702 for Missouri as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 63112?
19 USPS carrier routes with 10,520 residential and 366 business mailboxes (10,886 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 63112?
The closest, measured center to center: 63108 (1.9 mi, St. Louis), 63113 (1.9 mi, St. Louis), 63133 (2 mi, Pagedale), 63130 (2.3 mi, University City), 63120 (2.4 mi, St. Louis) and 63105 (2.6 mi, Clayton).

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