This presentation maps demographic changes in St. Louis County, MO, between 2000 and 2010, using ModelBuilder to apportion block and tract data to the county's unincorporated areas and its 90 municipalities. Various socioeconomic changes are mapped in the 28 municipalities that lost population and saw declines in median household income.

1. Population Change
St. Louis County, MO
Nancy Cole
Spatial Data Modeling and Design
May 6, 2013

2. Year
St. Louis City
Population
St. Louis County
Population
1950
856,796 (Peak)
406,349
1960
750,026
703,532
1970
622,236
951,353
1980
453,085
973,896
1990
396,685
993,529
2000
348,189
1,016,315 (Peak)
2010
319,294
998,954

4. 90 Municipalities
BALLWIN
BELLA VILLA
BELLEFONTAINE NEIGHBORS
BELLERIVE
BEL-NOR
BEL-RIDGE
BERKELEY
BEVERLY HILLS
BLACK JACK
BRECKENRIDGE HILLS
BRENTWOOD
BRIDGETON
CALVERTON PARK
CHAMP
CHARLACK
CHESTERFIELD
CLARKSON VALLEY
CLAYTON
COOL VALLEY
COUNTRY CLUB HILLS
COUNTRY LIFE ACRES
CRESTWOOD
CREVE COEUR
CRYSTAL LAKE PARK
DELLWOOD
DES PERES
EDMUNDSON
ELLISVILLE
EUREKA
FENTON
FERGUSON
FLORDELL HILLS
FLORISSANT
FRONTENAC
GLEN ECHO PARK
GLENDALE
GRANTWOOD VILLAGE
GREEN PARK
GREENDALE
HANLEY HILLS
HAZELWOOD
HILLSDALE
HUNTLEIGH
JENNINGS
KINLOCH
KIRKWOOD
LADUE
LAKESHIRE
MACKENZIE
MANCHESTER
MAPLEWOOD
MARLBOROUGH
MARYLAND HEIGHTS
MOLINE ACRES
NORMANDY
NORTHWOODS
NORWOOD COURT
OAKLAND
OLIVETTE
OVERLAND
PACIFIC
PAGEDALE
PASADENA HILLS
PASADENA PARK
PINE LAWN
RICHMOND HEIGHTS
RIVERVIEW
ROCK HILL
SHREWSBURY
ST. ANN
ST. JOHN
SUNSET HILLS
SYCAMORE HILLS
TOWN & COUNTRY
TWIN OAKS
UNIVERSITY CITY
UPLANDS PARK
VALLEY PARK
VELDA CITY
VELDA VILLAGE HILLS
VINITA PARK
VINITA TERRACE
WARSON WOODS
WEBSTER GROVES
WELLSTON
WESTWOOD
WILBUR PARK
WILDWOOD
WINCHESTER
WOODSON TERRACE

5. Questions
1. Which municipalities lost population, between 2000 and 2010?
2. Which municipalities saw a decline in median household income,
between 2009 and 2011?
3. For those municipalities that lost population and saw a decline in
median household income, calculate:
A. Percent Black, 2010
B. Percent 65 and Older, 2010
C. Percent of Adults with a Four-Year Degree or More, 2011

6. Methods / Limitations
 Apportionment by area of block and tract data to municipalities
 Assumes population spread evenly across each block and tract
 Highlights problems with municipal boundary polygons
Check Geometry & Repair Geometry
1 Self-Intersection
Create Topology & Validate Topology
1 Overlap and 1 Gap
Not coterminous with TIGER shapefiles

7. Year
Population
Apportioned
Population
Difference /
“Lost” People
2000
1,016,315
1,016,050
-265
2010
998,954
998,666
-288