Idylwilde, Lexington, Massachusetts presents a premium-leaning profile: pricing is about 7% above Lexington and about 64% above Massachusetts, while gross yield is 2.6% and prices are up 3.7% over the past year. The neighborhood has a Red Flag score of 62, walkability of 50, and education in the 100th percentile. The main strength is the education percentile; the main risk is the combination of higher pricing and a Red Flag score of 62.
AI Summary•Updated May 2026
Area
5.78 mi²
ZIP Code
02421
County
Middlesex County
State
Massachusetts
Redfin — median sale & volumeZillow ZORI — asking rentFEMA National Risk Index v1.20OpenStreetMap — POIFBI UCR — state crimeEPA — radon zonesEPA FRS / BTS — hazard screeningUS Census ACS / TIGER 2024
Verified Price · Median Sale
$1,749,481
YoY+3.7%
Gross Rental Yield
2.6%
Listed rent · ZORI annualized
Red Flag Index
High
62 / 100
Walkability Score
50
Somewhat Walkable
OpenStreetMap POI density · national percentile
Education Score
100 / 100
Excellent · better than 100% of U.S. districts
Pre-pandemic SEDA (2018/19) · district proxy
AI Score
35
Limited
DistrictScore attractiveness · national model
Idylwilde Property Prices & Rental Yield
Verified Redfin sale data and Zillow ZORI asking rent for Idylwilde, Lexington.
Market Trend (12-Month)
12 Months
$2.2M$2.1M$2.0M$1.8M$1.7M
Verified Sale Price (Median)
Jun '25May '26
Verified = Redfin median sale price (MLS). Rolling 3-month series.
Unlock the Idylwilde 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 Massachusetts crime context.
Red Flag Breakdown
62 / 100
High Risk
Composite is weighted by expected impact — frequent low-damage hazards (hail, wind) weigh less than flood or wildfire.
Hurricane80Very High
Earthquake80Very High
Flood60High
Wildfire60High
Tornado60High
Strong Wind60High
Heat40Moderate
Hail20Low
8/8 hazards scored · FEMA NRI v1.20
Crime (state-level): Massachusetts averaged 14.3 crimes and 3.1 violent per 1,000 residents (+0.1% 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 Idylwilde's live DistrictScore metrics.
Idylwilde Environment & Safety
Satellite PM2.5 air-quality history, FBI UCR crime trend (Massachusetts-level, the finest official aggregation), EPA radon potential and point-source hazard screening.
Massachusetts Crime Trend
FBI UCR
24120
20132024
All crimes / 1k
Violent / 1k
Year
Crimes / 1k
Violent / 1k
YoY
2024
14.3
3.1
+0.1%
2023
14.4
3.2
+4.2%
2022
14.0
3.2
+7.4%
2021
13.0
3.0
-3.1%
2020
13.6
3.1
-9.8%
2019
15.1
3.3
—
Reported at the state level — the finest official US crime aggregation; Idylwilde inherits the Massachusetts figures.
Radon Potential
EPA
Zone 1
Zone 1 — Highest potential · Idylwilde
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)2.9 kmHigh
Industrial odor3 nearbyVery High
Point-source screening near Idylwilde: 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 Idylwilde
Amenity density and pedestrian access from OpenStreetMap points of interest.
Walkability & Amenities
OpenStreetMap POI
50
Somewhat Walkable
Walkability Score
6
Grocery
24
Dining
13
Schools
0
Universities
2
Hospitals
3
Pharmacies
14
Parks
0
Rail Transit
0
Coworking
POI counts are amenities within Idylwilde's boundary plus a 400 m walk buffer. Rail transit excludes bus stops.
Idylwilde vs Lexington vs Massachusetts
How Idylwilde benchmarks against its city and state medians.
Benchmark vs City & State
Across Idylwilde, the median sale price sits about 7% above the median for Lexington neighborhoods and about 68% above the statewide median. Gross rental yield is 2.6%, against 2.7% for Lexington neighborhoods and 4.8% statewide. Over the past 12 months, prices rose 3.7%. Transaction liquidity sits in line with the median for Lexington neighborhoods and in line with the statewide median.
Idylwilde, Lexington, Massachusetts has a premium-leaning profile in the numbers provided. Pricing is about 7% above Lexington and about 64% above Massachusetts, gross yield is 2.6%, and prices are up 3.7% over the past year. The Red Flag score is 62.
Neighborhoods near Idylwilde
Compare Idylwilde with nearby neighborhoods in Lexington.