Lotvox market story
ZIP 85378
Surprise, Maricopa County, AZ
What homes are worth, what they cost to carry, how fast they sell — one step at a time.
- Typical home value
- $330,543
- 12-month change
- −1.2%
- Payment share of income
- 34.9%
This week since 2026-10-08: Payment share of income 34.9% (was 34.5%) · Monthly P&I $1,831 (was $1,809)
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Who's going to sell in 85378 this year?
Lotvox Turnover Index
Ranking every home in 85378 by how likely it is to sell
The Lotvox Turnover Index is scored here but not published yet: a ZIP goes live only when its held-out capture beats 20% on at least 30 recorded sales.
Where
85378 in Maricopa County, AZ
85378 is one of 135 ZIP codes that lie mostly in Maricopa County, AZ.
Shaded by typical home value, it ranks 31 of the 38 nearby ZIPs shown.
- Value rank among nearby ZIPs
- 31 of 38
Source: U.S. Census Bureau, TIGER/Line boundaries; Zillow Home Value Index (ZHVI), Zillow Research
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What it costs
Home values
What homes are worth in 85378
In January 2000 the typical home in 85378 was worth $113,006.
Values peaked at $381,371 in July 2022. The latest reading is −13.3% from that peak.
As of August 2026: $330,543, −1.2% over twelve months.
- Typical home value
- $330,543
- 12-month change
- −1.2%
Source: Zillow Home Value Index (ZHVI), Zillow Research · data as of 2026-08-31
Housing pulse
Monthly cost vs. price
Start with the typical home: $330,543. Put 20% down and borrow $264,434 at 7.40%, the 30-year fixed average as of October 8, 2026.
That is $1,831 a month in principal and interest.
The median household here earns $62,881 a year, $5,240 a month. So the payment takes 34.9% of income — rated “stretched” (Lotvox ZIP bands: under 28% affordable · 28–36% stretched · 36%+ severe).
The line holds today's rate fixed and moves only the price: at that rate, the same share was 11.9% in 2000.
- Payment share of income
- 34.9%
- Monthly P&I
- $1,831
Source: Zillow Home Value Index (ZHVI), Zillow Research; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; U.S. Census Bureau, American Community Survey 5-year estimates; Lotvox analysis (calculations on the sources above) · data as of 2026-08-31
Lotvox lens
The payment, at each month's rate
Take the typical home's price each month, borrow 80% at that month's actual 30-year average rate: in January 2000 (8.21%) the payment was $677.
In December 2020, with rates at 2.68%, it was $812.
By August 2026, at 6.67%, it was $1,701 — +110% since December 2020, while the home's value moved +32%.
- Payment change since 2020
- +110%
Source: Zillow Home Value Index (ZHVI), Zillow Research; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Lotvox lens
Home value after inflation
Deflated with CPI-U (seasonally adjusted, FRED CPIAUCSL) to August 2026; the site's Housing pulse chart uses its own CPI series, so older months can differ slightly.
Reported values rose +193% since January 2000.
General prices (CPI-U) rose +97% over the same span.
Divide one by the other: in August 2026 dollars, the 2000 home was worth $223,029. So the real change is +48%, not +193%.
- Real change since 2000
- +48%
Source: Zillow Home Value Index (ZHVI), Zillow Research; U.S. Bureau of Labor Statistics, Consumer Price Index (CPI-U), via FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Deflated with CPI-U (seasonally adjusted, FRED CPIAUCSL) to August 2026; the site's Housing pulse chart uses its own CPI series, so older months can differ slightly.
Home values
85378 against its neighbors
85378: +193% since January 2000.
Maricopa County: +212% since January 2000.
Arizona: +207% since January 2000 — 85378 ran behind it by 14 points.
- Change since 2000
- +193%
Source: Zillow Home Value Index (ZHVI), Zillow Research; Lotvox analysis (calculations on the sources above) · data as of 2026-08
Lotvox lens
85378 among Arizona ZIPs
Against 398 Arizona ZIP codes, 85378 sits at the 48th percentile for affordability (price vs local income).
31st for appreciation (recent value growth); 81st for rental yield (rent vs price).
- Affordability percentile
- 48th
Source: Zillow Home Value Index (ZHVI), Zillow Research; U.S. Census Bureau, American Community Survey 5-year estimates; Lotvox analysis (calculations on the sources above)
Lotvox lens
Rent or own
Owning the typical home costs about $2,161 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $1,851 a month.
Price divided by a year's rent: 14.9. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.
- Price-to-rent
- 14.9
Source: Zillow Home Value Index (ZHVI), Zillow Research; Zillow Observed Rent Index (ZORI), Zillow Research; Freddie Mac, 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US), retrieved from FRED®, Federal Reserve Bank of St. Louis; Lotvox analysis (calculations on the sources above)
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What's moving
Housing pulse
Sales pace vs. normal
Homes sold: about 11 a month in August 2026 (Redfin).
The 2015–2019 level for the same month was 13 — so sales ran at 85% of it, and below it in 24 of the last 24 months.
- Sales vs 2015–19 level
- 85%
Source: Redfin Data Center (market tracker data); Lotvox analysis (calculations on the sources above) · data as of 2026-08
New supply
Homes being permitted
Across Maricopa County, builders pulled permits for 31,651 new homes in 2025.
Of those, 54% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).
- Units permitted 2025
- 31,651
Source: U.S. Census Bureau, Building Permits Survey · data as of 2025
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Who's holding, who's leaving
Housing pulse
Migration and inventory
This ZIP sits in Maricopa County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 25,749 moved in. Among the ten receiving the most, 25,843 moved out.
Net across those counties: −94 households. Beside it, homes for sale in this ZIP: 21 in June 2026.
Most arrivals came from Pinal, AZ (6,549 households); most departures went to Pinal, AZ (10,805).
- Net households (top-10 flows)
- −94
Source: IRS Statistics of Income, county-to-county migration data; Redfin Data Center (market tracker data) · data as of 2026-06-01
Who's holding
How long owners in 85378 have held
Of 1,367 homes with a recorded purchase date, 13% have had the same owner for 20 years or more, and 28% changed hands in the last five.
50% are owned from a different mailing address, 14% from out of state.
- Held 20+ years
- 13%
- Owned from elsewhere
- 50%
Source: County assessor and recorder public records · data as of 2026-10-11
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