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The 63021 ZIP Code is centered1 in Saint Louis County at latitude 38.577 and longitude -90.529. It is a standard type ZIP Code. Saint Louis County is in the Central Time Zone (UTC -6 hours) and observes daylight savings time. The population in ZIP Code Tabulation Area (ZCTA) 63021 was 54,560 with 20,525 housing units; a land area land area of 21.54 sq. miles; a water area of 0 sq. miles; and a population density of 2,533.45 people per sq. mile for Census 2000. Demographic Profile |
Ballwin, MO 63021 Map (Marker is ZIP Code Centroid)
Local Search, 63021 ZIP Code| Distance & Driving Directions
Nearby Cities, Towns & Census Designated Places
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Winchester, MO
(< 0.1 mile) Ballwin, MO (1.4 miles NW) Twin Oaks, MO (1.9 miles ESE) Mountain Ridge, MO (1.9 miles SSW) Lincoln Beach, MO (1.9 miles SSW) |
Manchester, MO
(1.9 miles NE) Fern Glen, MO (1.9 miles S) Pettys Hill, MO (2.4 miles SSE) Castlewood, MO (2.4 miles SW) Morschels, MO (2.7 miles S) |
Nearby Neighborhoods, Subdivisions & Other Small Populated Places
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Minke, MO
(3.1 miles SSW) Jedburgh, MO (3.9 miles SW) Stevens, MO (7.6 miles NW) Grantwood, MO (10.1 miles E) Jefferson Heights, MO (12.8 miles S) |
University City, MO
(12.8 miles ENE) Toonerville, MO (13.6 miles NW) Rock Springs, MO (14.1 miles ENE) Jefferson Barracks, MO (14.4 miles ESE) |
ZIP Codes - Key Concepts
- ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
- The centroid of a ZIP Code may be in one County and the associated city/town in another.
- In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
- ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
- ZIP Codes are only loosely tied to cities.
1 Keeping the above key concepts in mind, what we informally refer to as the "center" of a ZIP Code is most often actually the centroid of a polygon.
