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ZIP Code · MA

ZIP 02421

Pop. 18,080·Middlesex County·6th most expensive ZIP in Massachusetts
Median rent (all units)
$3,964/mo
Year-over-Year
Stable
Month-over-Month
-6.5%
vs US Median
+$2,002
Falling (Monthly)
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Most AffordableMost Expensive
ZIP 02421 · $3,964
More expensive than 97% of US ZIP codes · National median $1,962/mo
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Medians by bedroom

Rent by unit size

Studio
$3,370
1 BR
$3,540
2 BR
$4,200
3 BR
$5,040
4 BR+
$5,560
Research median
$4,200/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: August 17, 2026

Annual cost
$47,568/yr
At $3,964/mo median
Location
StateMA
CountyMiddlesex County
Rent Market Meter
Strong Renter's Market
Renter's MarketBalancedLandlord's Market
Rents are down 0.0% year-over-year. Push hard on price, concessions, and lease terms.
Based on rent-price momentum (+0.0% YoY, -6.5% MoM), not inventory.
Demographics

Who lives here

ZIP 02421 (Lexington, MA) is majority owner-occupied, has a large retiree population, has a median income above the national average, 83.2% of residents hold a bachelor's degree or higher.

Population
18,080
Median income
$227,813
Median age
48.2
Renters
24.1%
Age distribution
25.4%
30.2%
14.3%
22.8%
Under 1825.4%
18–347.4%
35–5430.2%
55–6414.3%
65+22.8%
Gender
47.7%
52.3%
Male47.7%
Female52.3%
Race & ethnicity
55.5%
35.7%
White55.5%
Black1.4%
Hispanic3%
Asian35.7%
Other4.5%
Education (25+)
83.2%
No HS diploma4%
HS diploma5.4%
Some college7.3%
Bachelor's+83.2%
Housing tenure
75.9%
24.1%
Owner75.9%
Renter24.1%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2021 vs 2026

How ZIP 02421 in Lexington, MA has changed in 5 years

Income
$191,140 → $227,813
up 19.2%
Population
18,784 → 18,080
down 3.7%
Renter share
23% → 24.1%
+1.1 pts
Bachelor's+
84.5% → 83.2%
-1.3 pts
Median age
47.1 → 48.2
+1.1 yrs

On the earnings side, the typical household in ZIP 02421 in Lexington, MA now reports about $227,813, up from $191,140 in 2021. Census counts show ZIP 02421 in Lexington, MA losing about 704 residents over the five-year window, down 3.7% on net.

Community

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Local insights

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About renting in ZIP 02421

Last updated: August 17, 2026

ZIP code 02421 covers Lexington, MA. The median rent here is $3,964/mo as of August 2026. A 1-bedroom rents for a median of $3,540/mo. A 2-bedroom rents for a median of $4,200/mo.

At 21% of local median household income ($227,813/yr), ZIP 02421 ranks as affordable compared to the national benchmark of 30%. Rent prices have stayed steady over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 02421?

As of August 17, 2026, the median monthly rent in ZIP 02421 (Lexington, MA) is $3,964. This is based on aggregated data from public sources and community submissions.

How does ZIP 02421 rent compare to the US average?

ZIP 02421's median rent of $3,964/mo is $2,002 (102%) above the US national median of $1,962/mo.

How does ZIP 02421 compare to other ZIPs in Massachusetts?

ZIP 02421 is one of the pricier ZIP codes in Massachusetts, ranking #6 out of 171 ZIPs tracked at $3,964/mo.

How much income do you need to rent in ZIP 02421?

To keep rent at or below 30% of gross income, you would need to earn at least $159,000/year (~$76/hour full-time) to afford the median rent of $3,964/mo in ZIP 02421. The local median household income is $227,813/yr, meaning the typical household meets that threshold.

Is rent going up or down in ZIP 02421?

Rent in ZIP 02421 has been relatively stable over the past year, with a 0.0% change year over year as of August 17, 2026.

Is ZIP 02421 an affordable place to rent?

ZIP 02421 is considered very affordable for renters. At $3,964/mo, rent takes approximately 21% of the local median household income ($227,813/yr). The standard benchmark is 30%. ZIP 02421 falls comfortably within that range.

What percentage of ZIP 02421 residents rent vs. own?

According to Census data, approximately 24.1% of ZIP 02421 households are renters, while 75.9% are owner-occupied. ZIP 02421 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 02421 compare to the rest of Lexington?

ZIP 02421 is more affordable than Lexington overall. At $3,964/mo, it's $124 below the Lexington citywide median of $4,088/mo.

When was rent data for ZIP 02421 last updated?

Rent data for ZIP 02421 reflects August 17, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
21%
VERY AFFORDABLE

At $3,964/mo, rent takes ~21% of ZIP 02421's median household income ($227,813/yr). The standard benchmark is 30%.

ZIP 02421 21%Benchmark 30%
State income tax5%
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Schools nearby

Public schools near ZIP 02421 (Lexington, MA)

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