3-digit ZIP regional index
Home appreciation in ZIP codes 623xxQuincy, IL area
FHFA HPI® data shows the regional home price index for ZIP codes beginning with 623 changed +2.2% over the year to Q2 2026, compared with +6.0% for Illinois and +3.0% for the United States.
The region covers ZIP codes 62301–62380. Most of its 2010 population lived in Adams County (60%), Hancock County (16%), Pike County (15%). Communities in the region include Pittsfield, Hamilton, Carthage, Mount Sterling, Warsaw. This is a regional index, not a ZIP5, street, or individual-home estimate.
- 1-year change
- +2.2%
- 5-year change
- +38.1%
- Since Q1 1995
- +179%
- National rank (1 year)
- 639th
Year to Q2 2026
vs U.S. +41.3%
vs U.S. +292%
of 882 ZIP3 regions
ZIP3 623 vs Illinois and the U.S.
FHFA HPI® all-transactions index, rebased so Q1 1995 = 100, through Q2 2026
- ZIP3 623: 279.2
- Illinois: 283.5
- United States: 391.6
Want a different starting year? Rebase this chart or compare with another ZIP3.
Appreciation by time window
| Window | ZIP3 623 | IL | U.S. | Gap vs IL | Gap vs U.S. |
|---|---|---|---|---|---|
| 1 year | +2.2% | +6.0% | +3.0% | −3.8 pts | −0.8 pts |
| 3 years | +14.3% | +21.8% | +12.9% | −7.5 pts | +1.4 pts |
| 5 years | +38.1% | +46.9% | +41.3% | −8.8 pts | −3.2 pts |
| 10 years | +60.7% | +75.6% | +93.3% | −14.9 pts | −32.6 pts |
| Since Q1 1995 | +179% | +184% | +292% | −4.3 pts | −112.4 pts |
If you bought in ZIP3 623 in…
Applying the regional index change from the same quarter of each year to Q2 2026 to an example $300,000 purchase price. Individual homes can differ widely from the regional average.
| Bought in | Index change | $300,000 then, at the regional rate |
|---|---|---|
| Q2 1995 | +177% | $829,800 |
| Q2 2000 | +140% | $718,662 |
| Q2 2005 | +98.1% | $594,295 |
| Q2 2010 | +79.1% | $537,302 |
| Q2 2015 | +64.8% | $494,276 |
| Q2 2020 | +47.4% | $442,122 |
| Q2 2021 | +38.1% | $414,264 |
| Q2 2023 | +14.3% | $342,899 |
| Q2 2025 | +2.2% | $306,555 |
How ZIP3 623 ranks
Over the past year ZIP3 623 ranks 639th of 882 3-digit ZIP regions nationally and 26th of 29 in Illinois. Its one-year change is −0.8 pts versus the nation and −3.8 pts versus Illinois. Rank 1 is the strongest appreciation.
| Window | National rank | Rank in Illinois |
|---|---|---|
| 1 year | 639th of 882 | 26th of 29 |
| 3 years | 506th of 882 | 29th of 29 |
| 5 years | 656th of 882 | 29th of 29 |
| 10 years | 813th of 882 | 21st of 29 |
| Since Q1 1995 | 836th of 879 | 13th of 29 |
Boom, bust, and recovery in ZIP3 623
ZIP3 623's index peaked in Q2 2007, fell 5.1% to its low in Q3 2007, and regained its peak in Q1 2010, about 2.8 years after the top. Today it sits +79.6% versus that 2000s peak. How every state and ZIP region fared
| Area | 2000s peak | Low point | Peak to low | Back to peak | Today vs peak |
|---|---|---|---|---|---|
| ZIP3 623 | Q2 2007 | Q3 2007 | -5.1% | Q1 2010 (2.8 yrs) | +79.6% |
| IL | Q1 2007 | Q2 2012 | -21.8% | Q2 2021 (14.2 yrs) | +51.8% |
| U.S. | Q1 2007 | Q2 2012 | -19.0% | Q4 2016 (9.8 yrs) | +89.3% |
Appreciation after inflation
Adjusting for consumer price inflation, ZIP3 623's index has changed +26.1% in real terms since Q1 1995. Home prices vs inflation
| Window | Inflation (CPI-U) | ZIP3 623 after inflation | IL after inflation | U.S. after inflation |
|---|---|---|---|---|
| 1 year | +3.9% | -1.6% | +2.0% | -0.8% |
| 3 years | +9.8% | +4.1% | +10.9% | +2.8% |
| 5 years | +24.0% | +11.3% | +18.4% | +13.9% |
| 10 years | +39.1% | +15.6% | +26.3% | +39.0% |
| Since Q1 1995 | +121% | +26.1% | +28.0% | +76.8% |
Estimate appreciation for a home in ZIP3 623
Regional estimate
$482,155
- Estimated gain
- $182,155
- Index change
- +60.72%
- Start index
- 173.72
- End index
- 279.20
ZIP3 623 (Quincy, IL area), Q2 2016 to Q2 2026. Index type: Native 3-Digit ZIP index.
Nearby 3-digit ZIP regions
| 3-digit ZIP region | State | 1 year | 5 years | Since Q1 1995 |
|---|---|---|---|---|
| 634 · Hannibal, MO area | MO | +5.4% | +53.2% | +255% |
| 526 · Burlington, IA area | IA | +3.1% | +39.6% | +239% |
| 626 · Jacksonville, IL area | IL | +7.0% | +40.6% | +150% |
| 614 · Galesburg, IL area | IL | +1.7% | +39.0% | +170% |
| 635 · Kirksville, MO area | MO | +5.4% | +53.2% | +255% |
| 633 · O'Fallon, MO area | MO | +3.5% | +44.7% | +252% |
Recent quarterly index values
| Period | Index |
|---|---|
| Q2 2026 | 279.20 |
| Q1 2026 | 286.47 |
| Q4 2025 | 265.87 |
| Q3 2025 | 279.20 |
| Q2 2025 | 273.23 |
| Q1 2025 | 264.38 |
| Q4 2024 | 270.57 |
| Q3 2024 | 257.52 |
| Q2 2024 | 269.12 |
| Q1 2024 | 238.57 |
| Q4 2023 | 247.69 |
| Q3 2023 | 244.69 |
Frequently asked questions
- How much have home prices risen in ZIP codes starting with 623?
- Based on FHFA HPI® data for 3-digit ZIP region 623, the regional index changed +2.2% over the year to Q2 2026, +38.1% over five years, +60.7% over ten years, and +179% since Q1 1995.
- Is ZIP3 623 appreciating faster than Illinois and the U.S.?
- Over the past year the region's index +2.2% compares with +6.0% for Illinois and +3.0% for the U.S., a gap of −0.8 pts versus the nation. Over five years the gap versus the nation is −3.2 pts.
- Which ZIP codes are in 3-digit ZIP region 623?
- All ZIP codes that begin with 623. Census 2010 ZIP Code Tabulation Areas in this region run from 62301 to 62380 (52 areas). FHFA publishes one index for the whole 3-digit region, not for each 5-digit ZIP code.
- Can I use this to value my home?
- No. The FHFA HPI® is a broad regional index of average price movement. It is not an appraisal, tax assessment, or automated valuation of any individual property. Use it as general context alongside local sales and a professional opinion.