DeKalb

Source:

Indiana

DeKalb is a smaller county in Indiana with 7 ZIP codes, 40,404 people, and above-median household income among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.

National county placement

According to ACS 5-Year Estimates, DeKalb, IN sits among US counties with an above-median household income, on a smaller county population base, across a compact ZIP cluster.

Top 30%
household income vs 3,210 US counties
40,404
combined ZIP population
7
USPS ZIP codes covered
$76,248
avg ZIP median income

Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.

DeKalb lands in the national county income distribution as above-median household income on smaller county footing (FIPS 18033, 7 ZIPs, combined population 40,404). Sort the ZIP table by population before treating the county mean as uniform.

Above-median income on a compact ZIP cluster (7 codes). Population density still swings from downtown to farm-edge; the density column is the fastest filter before a side-by-side compare. County-level HUD and FBI inputs still key off FIPS 18033.

Save two ZIPs from the table into your shortlist, then open a compare link - that is the return path a static county summary cannot replace. All figures here come from Census ACS 2023 5-Year Estimates and USPS ZCTA files.

View your shortlist →

7

Total ZIPs

40,404

Total Population

ZIP Codes in DeKalb

Side-by-side: Compare 46706 vs 46738 →

ZIP Code City Population Density
46706 Auburn 18,630 83
46738 Garrett 7,918 117
46721 Butler 5,058 24
46793 Waterloo 4,292 30
46705 Ashley 1,583 31
46785 Saint Joe 1,542 24
46730 Corunna 1,381 19

Frequently Asked Questions

What is the population of DeKalb?

DeKalb has a total population of 40,404 across 7 ZIP codes, based on U.S. Census Bureau ACS 2023 data.

What ZIP codes are in DeKalb?

DeKalb includes 7 ZIP codes: 46706, 46738, 46721, 46793, 46705, 46785, 46730.

DeKalb's figures come from Census ACS 5-Year Estimates (2023), mapped to ZIP codes via the HUD USPS Crosswalk. PlainZIP is not affiliated with the U.S. Census Bureau or any government agency. See our methodology for details.

Related

Compare any two ZIPs side by side

Read our methodology : how this data is sourced, computed, and verified.