What city is 63127 in?

63127 is a Saint Louis, MO mailing address. By land area, 100% lies inside Sunset Hills.

What is the population of 63127?

About 5,268 people (±527), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,642.

What is the median household income in 63127?

$122,663 (±$20,855), 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 63127?

8 USPS carrier routes with 2,378 residential and 441 business mailboxes (2,819 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 63127?

The closest, measured center to center: 63126 (2.3 mi, Crestwood), 63026 (3.1 mi, Fenton), 63122 (3.1 mi, Kirkwood), 63128 (3.4 mi, Concord), 63088 (4.7 mi, Valley Park) and 63123 (4.9 mi, Affton).

63127 ZIP Code, Saint Louis, MO

63127 is a ZIP code in Saint Louis, Missouri in St. Louis County. It covers 5.8 square miles of land. The closest ZIP codes are 63126, 63026 and 63122. 5,268 people live here in 2,149 households. With about 910 people per square mile it is lightly settled, and most homes are owner-occupied (79%). Median household income is $122,663, well above the Missouri median of $70,702; the median age is 54.5, older than most ZIP codes.

Quick facts

Mailing city: Saint Louis, MO
County: St. Louis County
Land area: 5.8 sq mi
Population: 5,268
Median household income: $122,663
Carrier routes: 8 (2,378 homes)

Key figures

Measure	Value
Residents	5,268
Households	2,149
Median household income	$122,663
Income per person	$73,983
Median age	54.5
Homeowners	78.8%
Median home value	$583,400
Median rent	$1,771
Bachelor's degree or higher	58.4%
Average commute (minutes)	21.1
Households with kids under 18	25.0%
Moved in the past year	8.3%
Below the poverty line	5.6%
Broadband internet	84.2%
Speak a non-English language at home	5.2%

Household income

% of households	Value
<$10K	3.2%
$10–15K	0.7%
$15–25K	2.9%
$25–35K	11.3%
$35–50K	8.1%
$50–75K	9.4%
$75–100K	3.6%
$100–150K	18.4%
$150–200K	10.9%
$200K+	31.5%

Age

% of all residents	Value
<10	8.8%
10–19	11.5%
20–24	2.4%
25–34	5.0%
35–44	11.0%
45–54	12.4%
55–64	13.1%
65–74	13.9%
75+	21.8%

Tenure

% of housing units	Value
Owned, with mortgage	47.6%
Owned outright	28.8%
Rented	20.1%
Vacant	3.5%

Type of building

% of housing units	Value
Detached house	75.9%
Townhome	4.1%
2–4 units	2.2%
5–19 units	2.6%
20+ units	15.1%
Mobile / other	0.0%

Businesses in 63127

591 business establishments with 9,987 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 98
Finance and Insurance: 97
Management of Companies and Enterprises: 73
Professional, Scientific, and Technical Services: 69
Construction: 34
Accommodation and Food Services: 34
Retail Trade: 33
Real Estate and Rental and Leasing: 30

EDDM carrier routes

63127 has 8 USPS carrier routes with 2,378 residential and 441 business mailboxes. Open the EDDM route map.

Carrier routes in 63127

63127 has 8 USPS carrier routes (8 city (C)) with 2,378 residential and 441 business mailboxes. Routes range from 194 homes (C018) to 494 homes (C006); the median route has 270 homes. The Census counted 2,149 households in 63127 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	3
250–499	5
500–749	0
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 63127 for…

Most businesses

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

Route C018 — USPS business mailboxes 101, 194 homes
Route C008 — USPS business mailboxes 85, 223 homes
Route C047 — USPS business mailboxes 76, 272 homes
Route C007 — USPS business mailboxes 69, 268 homes
Route C069 — USPS business mailboxes 59, 235 homes

Select these 5 routes on the route map

Every carrier route in 63127

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C006	City	494	40	$200,001+	—	—	—
C007	City	268	69	$152,458	—	—	—
C008	City	223	85	$200,001+	—	—	—
C009	City	339	4	$152,458	—	—	—
C018	City	194	101	$106,723	—	—	—
C046	City	353	7	$200,001+	—	—	—
C047	City	272	76	$110,248	—	—	—
C069	City	235	59	$106,723	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 63127 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

63126 — Crestwood city, MO (2.3 mi)
63026 — Fenton city, MO (3.1 mi)
63122 — Kirkwood city, MO (3.1 mi)
63128 — Concord CDP, MO (3.4 mi)
63088 — Valley Park city, MO (4.7 mi)
63123 — Affton CDP, MO (4.9 mi)
63119 — Webster Groves city, MO (5.3 mi)
63131 — Town and Country city, MO (5.8 mi)

Areas that include 63127

Sunset Hills, MO ZIP codes — 2 ZIP codes
Saint Louis, MO ZIP codes — 45 ZIP codes
St. Louis County ZIP codes — 46 ZIP codes
Missouri ZIP code data

Where it ranks

Mail every home in 63127

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) 63127, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 63127 in?: 63127 is a Saint Louis, MO mailing address. By land area, 100% lies inside Sunset Hills.
What county is 63127 in?: 63127 is in St. Louis County.
What is the population of 63127?: About 5,268 people (±527), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 5,642.
What is the median household income in 63127?: $122,663 (±$20,855), 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 63127?: 8 USPS carrier routes with 2,378 residential and 441 business mailboxes (2,819 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 63127?: The closest, measured center to center: 63126 (2.3 mi, Crestwood), 63026 (3.1 mi, Fenton), 63122 (3.1 mi, Kirkwood), 63128 (3.4 mi, Concord), 63088 (4.7 mi, Valley Park) and 63123 (4.9 mi, Affton).

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