3-digit ZIP regional index
Home appreciation in ZIP codes 851xxCasa Grande, AZ area
FHFA HPI® data shows the regional home price index for ZIP codes beginning with 851 changed +0.6% over the year to Q2 2026, compared with +0.9% for Arizona and +3.0% for the United States.
The region covers ZIP codes 85118–85194. Most of its 2010 population lived in Pinal County (90%), Maricopa County (10%). Communities in the region include San Tan Valley, Maricopa, Apache Junction, Queen Creek, Florence. This is a regional index, not a ZIP5, street, or individual-home estimate.
- 1-year change
- +0.6%
- 5-year change
- +37.3%
- Since Q1 1995
- +369%
- National rank (1 year)
- 794th
Year to Q2 2026
vs U.S. +41.3%
vs U.S. +292%
of 882 ZIP3 regions
ZIP3 851 vs Arizona and the U.S.
FHFA HPI® all-transactions index, rebased so Q1 1995 = 100, through Q2 2026
- ZIP3 851: 469.2
- Arizona: 471.5
- Phoenix-Mesa-Chandler, AZ metro: 517.1
- United States: 391.6
Want a different starting year? Rebase this chart or compare with another ZIP3.
Appreciation by time window
| Window | ZIP3 851 | AZ | U.S. | Gap vs AZ | Gap vs U.S. |
|---|---|---|---|---|---|
| 1 year | +0.6% | +0.9% | +3.0% | −0.4 pts | −2.5 pts |
| 3 years | +9.1% | +8.2% | +12.9% | +0.8 pts | −3.8 pts |
| 5 years | +37.3% | +36.3% | +41.3% | +1.1 pts | −3.9 pts |
| 10 years | +133% | +116% | +93.3% | +16.8 pts | +39.6 pts |
| Since Q1 1995 | +369% | +372% | +292% | −2.3 pts | +77.7 pts |
If you bought in ZIP3 851 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 | +387% | $1,460,108 |
| Q2 2000 | +246% | $1,038,732 |
| Q2 2005 | +116% | $648,496 |
| Q2 2010 | +244% | $1,031,577 |
| Q2 2015 | +147% | $741,631 |
| Q2 2020 | +68.1% | $504,422 |
| Q2 2021 | +37.3% | $412,027 |
| Q2 2023 | +9.1% | $327,157 |
| Q2 2025 | +0.6% | $301,659 |
How ZIP3 851 ranks
Over the past year ZIP3 851 ranks 794th of 882 3-digit ZIP regions nationally and 7th of 11 in Arizona. Its one-year change is −2.5 pts versus the nation and −0.4 pts versus Arizona. Rank 1 is the strongest appreciation.
| Window | National rank | Rank in Arizona |
|---|---|---|
| 1 year | 794th of 882 | 7th of 11 |
| 3 years | 742nd of 882 | 5th of 11 |
| 5 years | 668th of 882 | 6th of 11 |
| 10 years | 24th of 882 | 1st of 11 |
| Since Q1 1995 | 128th of 879 | 4th of 11 |
Boom, bust, and recovery in ZIP3 851
ZIP3 851's index peaked in Q4 2006, fell 55.8% to its low in Q2 2011, and regained its peak in Q2 2020, about 13.5 years after the top. Today it sits +70.6% 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 851 | Q4 2006 | Q2 2011 | -55.8% | Q2 2020 (13.5 yrs) | +70.6% |
| AZ | Q4 2006 | Q2 2011 | -46.0% | Q3 2019 (12.8 yrs) | +72.5% |
| Metro | Q4 2006 | Q2 2011 | -51.1% | Q2 2019 (12.5 yrs) | +76.8% |
| U.S. | Q1 2007 | Q2 2012 | -19.0% | Q4 2016 (9.8 yrs) | +89.3% |
Appreciation after inflation
Adjusting for consumer price inflation, ZIP3 851's index has changed +112% in real terms since Q1 1995. Home prices vs inflation
| Window | Inflation (CPI-U) | ZIP3 851 after inflation | AZ after inflation | Metro after inflation | U.S. after inflation |
|---|---|---|---|---|---|
| 1 year | +3.9% | -3.2% | -2.8% | -2.9% | -0.8% |
| 3 years | +9.8% | -0.7% | -1.4% | -1.7% | +2.8% |
| 5 years | +24.0% | +10.7% | +9.9% | +9.5% | +13.9% |
| 10 years | +39.1% | +67.5% | +55.4% | +57.9% | +39.0% |
| Since Q1 1995 | +121% | +112% | +113% | +134% | +76.8% |
Estimate appreciation for a home in ZIP3 851
Regional estimate
$698,814
- Estimated gain
- $398,814
- Index change
- +133%
- Start index
- 201.44
- End index
- 469.23
ZIP3 851 (Casa Grande, AZ 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 |
|---|---|---|---|---|
| 852 · Mesa, AZ area | AZ | +0.8% | +36.1% | +418% |
| 850 · Phoenix, AZ area | AZ | +0.5% | +35.6% | +469% |
| 853 · Glendale, AZ area | AZ | +1.7% | +35.8% | +331% |
| 857 · Tucson, AZ area | AZ | +1.6% | +39.0% | +279% |
| 855 · Payson, AZ area | AZ | +2.0% | +46.0% | +331% |
| 856 · Sierra Vista, AZ area | AZ | +0.1% | +40.6% | +227% |
Recent quarterly index values
| Period | Index |
|---|---|
| Q2 2026 | 469.23 |
| Q1 2026 | 465.63 |
| Q4 2025 | 462.01 |
| Q3 2025 | 468.40 |
| Q2 2025 | 466.65 |
| Q1 2025 | 455.76 |
| Q4 2024 | 456.85 |
| Q3 2024 | 448.65 |
| Q2 2024 | 452.97 |
| Q1 2024 | 440.73 |
| Q4 2023 | 442.53 |
| Q3 2023 | 435.93 |
Frequently asked questions
- How much have home prices risen in ZIP codes starting with 851?
- Based on FHFA HPI® data for 3-digit ZIP region 851, the regional index changed +0.6% over the year to Q2 2026, +37.3% over five years, +133% over ten years, and +369% since Q1 1995.
- Is ZIP3 851 appreciating faster than Arizona and the U.S.?
- Over the past year the region's index +0.6% compares with +0.9% for Arizona and +3.0% for the U.S., a gap of −2.5 pts versus the nation. Over five years the gap versus the nation is −3.9 pts.
- Which ZIP codes are in 3-digit ZIP region 851?
- All ZIP codes that begin with 851. Census 2010 ZIP Code Tabulation Areas in this region run from 85118 to 85194 (24 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.