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  3. Area code 712
Iowa (IA)Central Time (CT)

Area Code 712

Iowa (IA) * Sioux City, Council Bluffs, Akron, Albert City, Alta, Alton, Alvord, Anita * Central Time (CT)

552.2K

Population

260

ZIP codes

Iowa

Primary state

Central Time (CT)

Time zones

What stands out

  • Coverage: 552.2K people across 260 ZIP codes.
  • Major cities: Sioux City, Council Bluffs, Akron.
Primary state:Iowa (IA)/Major cities:Sioux City, Council Bluffs, Akron, Albert City, Alta, Alton, Alvord, Anita

Browse sections

Basics

Percentiles compare this area code to other area codes nationwide.

Population

552.2K

ZIP codes

260

Median age

40.6 yrs

Population density

32.5/sq mi

Mean commute time

19 min

Avg. household size

2.4

Neighbors

Neighboring area codes

402507515531605641660
Notes & Sources
  • Area-code boundaries can change over time; verify official assignments with NANPA for critical use.
  • This page aggregates ZIP-based crosswalks for orientation and does not indicate phone-number availability.

Data freshness

ACS 5-year
2020–2024
Page updated
2026-02-23

Release schedule and upstream dates: Sources.

Data sources

U.S. Census (ACS 5-year)U.S. Census TIGER/LineNANPA

Derived statistics

  • Area codes are not Census geographies; statistics are estimated by aggregating ZCTA (ZIP) values for associated ZIPs.
  • ZIP↔area code associations are derived from NPA boundary polygons and ZCTA centroid points, and can be approximate.
  • Median age, mean commute, and household size are population-weighted; population density uses summed ZIP land area.
Area code overlays and service areas are primarily governed by NANPA; this page uses aggregated geographic overlays for orientation only.

Data accuracy & methodology

This report aggregates 2020–2024 ACS 5-year estimates and geographic overlays for orientation. Area code service areas can cross ZIP/state boundaries and change over time; verify official assignments with NANPA for critical use.