South Mountain, Phoenix, Arizona has a value-oriented profile with pricing about 8% below the city median and 5% below the state median, a gross yield of 4.6, and prices down 5.7% over the past year. Walkability is 97, but education is in the 4th percentile and the Red Flag score of 56 signals a moderate overall risk reading.
AI Summary•Updated May 2026
Area
39.84 mi²
ZIP Code
85042
County
Maricopa County
State
Arizona
Redfin — median sale & volumeZillow ZORI — asking rentFEMA National Risk Index v1.20OpenStreetMap — POIFBI UCR — state crimeEPA — radon zonesWashU ACAG — satellite PM2.5EPA FRS / BTS — hazard screeningUS Census ACS / TIGER 2024
Verified Price · Median Sale
$434,354
YoY-5.7%
Gross Rental Yield
4.6%
Listed rent · ZORI annualized
Red Flag Index
Moderate
56 / 100
Walkability Score
97
Walker's Paradise
OpenStreetMap POI density · national percentile
Education Score
4 / 100
Limited · better than 4% of U.S. districts
Pre-pandemic SEDA (2018/19) · district proxy
AI Score
49
Fair
DistrictScore attractiveness · national model
South Mountain Property Prices & Rental Yield
Verified Redfin sale data and Zillow ZORI asking rent for South Mountain, Phoenix.
Market Trend (12-Month)
12 Months
$449K$441K$432K$424K$415K
Verified Sale Price (Median)
Jun '25May '26
Verified = Redfin median sale price (MLS). Rolling 3-month series.
Unlock the South Mountain 12-month price trend
See the full Verified vs Listed price history — free with a DistrictScore account.
FEMA National Risk Index composite across eight hazards, plus inherited Arizona crime context.
Red Flag Breakdown
56 / 100
Moderate Risk
Composite is weighted by expected impact — frequent low-damage hazards (hail, wind) weigh less than flood or wildfire.
Heat100Very High
Flood80Very High
Hail80Very High
Wildfire60High
Earthquake60High
Strong Wind40Moderate
Hurricane20Low
Tornado20Low
8/8 hazards scored · FEMA NRI v1.20
Crime (state-level): Arizona averaged 22.1 crimes and 4.2 violent per 1,000 residents (-4.8% YoY) in 2024(FBI UCR). Compare the state to the country, not states as a ranking — full Safety & Crime data lives on the state page.
Insights are generated from South Mountain's live DistrictScore metrics.
South Mountain Environment & Safety
Satellite PM2.5 air-quality history, FBI UCR crime trend (Arizona-level, the finest official aggregation), EPA radon potential and point-source hazard screening.
Air Quality — PM2.5
2015–2024
7.8 µg/m³ Meets EPA, above WHO guideline-7.4% since 2015
10.18.26.44.5
EPA 9WHO 5
20152024
Annual mean fine-particle (PM2.5) concentration at the South Mountain centroid, satellite-derived (ACAG). References: WHO guideline 5 µg/m³ · EPA annual standard 9 µg/m³. Latest year ranks worse than 94% of U.S. neighborhoods.
Arizona Crime Trend
FBI UCR
38190
20132024
All crimes / 1k
Violent / 1k
Year
Crimes / 1k
Violent / 1k
YoY
2024
22.1
4.2
-4.8%
2023
23.6
4.3
-4.4%
2022
25.1
4.5
-0.1%
2021
25.4
4.3
-8.3%
2020
27.1
4.8
-4.3%
2019
28.8
4.5
—
Reported at the state level — the finest official US crime aggregation; South Mountain inherits the Arizona figures.
Radon Potential
EPA
Zone 2
Zone 2 — Moderate potential · South Mountain
EPA radon zones estimate indoor radon potential county-wide (Zone 1 highest, Zone 3 lowest). Testing is recommended in all zones.
Environmental Hazards
EPA / BTS
Superfund (NPL)0.3 kmVery High
Industrial odor18 nearbyVery High
Point-source screening near South Mountain: EPA Superfund National Priorities List & Facility Registry (2026), BTS aviation noise (2020, 24-hour average level). Superfund shows distance to the nearest listed site; odor shows detected sources within the screening radius. Only detected sources are listed; the bar shows severity vs. all U.S. neighborhoods.
Walkability & Amenities in South Mountain
Amenity density and pedestrian access from OpenStreetMap points of interest.
Walkability & Amenities
OpenStreetMap POI
97
Walker's Paradise
Walkability Score
54
Grocery
76
Dining
63
Schools
6
Universities
21
Hospitals
11
Pharmacies
110
Parks
9
Rail Transit
0
Coworking
POI counts are amenities within South Mountain's boundary plus a 400 m walk buffer. Rail transit excludes bus stops.
South Mountain vs Phoenix vs Arizona
How South Mountain benchmarks against its city and state medians.
Benchmark vs City & State
In South Mountain, the median sale price sits about 8% below the median for Phoenix neighborhoods and about 5% below the statewide median. Gross rental yield is 4.6%, against 4.5% for Phoenix neighborhoods and 4.8% statewide. Over the past 12 months, prices fell 5.7%. Transaction liquidity sits in line with the median for Phoenix neighborhoods and below the statewide median.
South Mountain, Phoenix, Arizona has a mixed profile. Pricing is about 8% below the city median and 5% below the state median, gross yield is 4.6, and prices are down 5.7% over the past year. The Red Flag score is 56, with walkability of 97 and education in the 4th percentile.
Neighborhoods near South Mountain
Compare South Mountain with nearby neighborhoods in Phoenix.