Polk County Auditor

Census Data released

May 2019 - The (July 1, 2018) City census population estimate released. 

Polk County population is estimated at 487,204

on pace for 500K in 2020.  Polk  population is +56,564 since 2010

Link 

The 8-year population increase of +56,564 is greater than the individual total population of the 89 smallest counties.   The increase also represents 51.5% of the State of Iowa’s increase in population during the past 8 years.

  • Dallas County  +24,045
  • Johnson County +20,378
  • Linn County +14,683

American Community Survey

Latest demographic and housing information for Polk County, Iowa.  US Census released the ACS results on December 7,2017 (2016 - 5 year estimates)

Population / Race

Economic / Income

School Enrollment

Earnings / Education

Commute

Population / Age

Additional datsets available on American FactFinder 

I Want To...

Main Office

Administration Building
111 Court Avenue, Room 230
Des Moines, IA 50309
Mon - Fri: 8 - 5, except holidays

 

Phone: (515) 286-3080

Fax: (515) 286-3608

Email

Election Office

George Paletta Building
120 2nd Avenue, Suite A
Des Moines, IA 50309 
Mon - Fri: 8 - 5, except holidays

 

Phone: (515) 286-3247

Fax: (515) 286-2099

Email

Central Accounting

Administration Building
111 Court Avenue, Room 315
Des Moines, IA 50309 
Mon - Fri: 8 - 5, except holidays

 

Phone: (515) 286-3753

Fax: (515) 323-5253

Email