Sangamon
Source:
Illinois
Sangamon is a mid-size county in Illinois with 25 ZIP codes, 197,614 people, and upper-quartile 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, Sangamon, IL sits among US counties with an upper-quartile household income, on a mid-size county population base, across a multi-ZIP patchwork.
- Top 12%
- household income vs 3,210 US counties
- 197,614
- combined ZIP population
- 25
- USPS ZIP codes covered
- $89,588
- 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.
Sangamon lands in the national county income distribution as upper-quartile household income on mid-size county footing (FIPS 17167, 25 ZIPs, combined population 197,614). Sort the ZIP table by population before treating the county mean as uniform.
High-income counties with wide ZIP mosaics hide sharp internal gradients. The densest ZIP here is 62704 (Springfield) with 39,831 residents - open it beside a thin rural code from the table before treating the county mean as uniform. HUD Fair Market Rents and FBI county tables attach to FIPS 17167, so scorecards stay county-keyed while household income stays ZIP-keyed.
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.
25
Total ZIPs
197,614
Total Population
ZIP Codes in Sangamon
Side-by-side: Compare 62704 vs 62702 →
| ZIP Code | City | Population | Density |
|---|---|---|---|
| 62704 | Springfield | 39,831 | 1,274 |
| 62702 | Springfield | 37,281 | 934 |
| 62703 | Springfield | 30,333 | 762 |
| 62711 | Springfield | 15,347 | 193 |
| 62629 | Chatham | 12,949 | 132 |
| 62712 | Springfield | 10,302 | 187 |
| 62707 | Springfield | 7,648 | 69 |
| 62615 | Auburn | 5,748 | 44 |
| 62563 | Rochester | 5,686 | 38 |
| 62561 | Riverton | 5,315 | 77 |
| 62684 | Sherman | 5,111 | 79 |
| 62558 | Pawnee | 3,590 | 15 |
| 62670 | New Berlin | 2,997 | 14 |
| 62677 | Pleasant Plains | 2,562 | 11 |
| 62693 | Williamsville | 1,638 | 16 |
| 62530 | Divernon | 1,532 | 21 |
| 62520 | Dawson | 1,529 | 27 |
| 62539 | Illiopolis | 1,358 | 11 |
| 62545 | Mechanicsburg | 1,246 | 17 |
| 62661 | Loami | 1,213 | 12 |
| 62701 | Springfield | 1,152 | 1,169 |
| 62515 | Buffalo | 961 | 6 |
| 62536 | Glenarm | 912 | 51 |
| 62625 | Cantrall | 855 | 15 |
| 62689 | Thayer | 518 | 326 |
Frequently Asked Questions
What is the population of Sangamon?
Sangamon has a total population of 197,614 across 25 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Sangamon?
Sangamon includes 25 ZIP codes: 62704, 62702, 62703, 62711, 62629, 62712, 62707, 62615, 62563, 62561, and more.