Spencer, IA ZIP Codes
One ZIP code serves Spencer, Iowa: 51301. Together they are home to 12,638 residents in 5,680 households.
Spencer city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 11,400 |
| Households | 5,201 |
| Median household income | $59,667 |
| Median home value | $184,800 |
| Median age | 41.4 |
| Median rent | $805 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 12,638 |
| Households (sum of ZIP codes) | 5,680 |
| Median household income, range across ZIP codes | $63,402 (51301) to $63,402 (51301) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $63,402 |
| Homeowners | 70.3% |
| Households with kids under 18 | 22.5% |
| Moved in the past year | 9.0% |
| Carrier routes in EDDM2GO's route library | not loaded yet |
Every ZIP code in Spencer
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 51301 | Spencer | 12,638 | 5,680 | $63,402 | $188,300 | 70.3% | 22.5% | 9.0% | — | — | 7% of its land; mailing city |
A ZIP code is listed for Spencer when at least 10% of its land lies inside Spencer city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Spencer. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Spencer.
Counties
- Clay County — 14 ZIP codes
Price a mailing to Spencer ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Spencer, IA?
- 51301. A ZIP code is listed for Spencer when at least 10% of its land lies inside Spencer city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Spencer.
- What is the population of Spencer, IA?
- The Census Bureau counts 11,400 residents inside Spencer city limits (ACS 2020–2024). The 1 ZIP code that serve Spencer hold 12,638 residents in all.
- What is the median household income in Spencer, IA?
- $59,667 inside Spencer city limits, per the Census Bureau. Across its ZIP codes the medians run from $63,402 to $63,402.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.