ZIP 21057 · Baltimore County

Glen Arm, MD Homeowners Insurance

According to U.S. Treasury FIO 2022 filings, homeowners insurance in ZIP 21057, Glen Arm, Maryland averages $2,049/yr.

96.4%
Loss ratio
0.67%
Nonrenewal rate
#56 of 422
Maryland rank
94
Policies

The verdict

Treasury FIO 2022: Glen Arm, MD sits #5,886 nationally on average premium ($2,049) versus #14,988 on nonrenewal rate (0.67%).

$2,049
Avg premium (2022)
#5,886
of 25,593 on premium
#14,988
of 21,752 on nonrenewal
77th
national percentile

Premium rank counts ZIPs with a reported average premium, highest first. Nonrenewal rank counts ZIPs with a reported nonrenewal rate, highest first. The two boards are different extracts.

According to U.S. Treasury Federal Insurance Office data. How we calculate the percentile and national comparison: methodology.

Insurance Livability Score

D
PlainInsure Livability Score
40/100
21057 - Glen Arm, MD

PlainInsure's own composite of Treasury FIO premium/market data and FEMA National Risk Index hazard data, each dimension percentile-ranked against the full national corpus. Not an official government score, and not a substitute for an actual insurance quote.

Affordability F
$2,049/yr
Avg premium, 23rd cheapest nationally (Treasury FIO)
Market Stability B-
0.01%
Nonrenewal rate -- insurers dropping coverage (Treasury FIO)
Disaster Risk F
94.0
County FEMA National Risk Index score
Community Resilience A
87.5
County FEMA NRI community-resilience score

Where ZIP 21057's premium sits nationally

Average annual homeowners premium across 25,593 tracked ZIP codes, as of 2022

$2,049 Higher than most more expensive than 77% of 25,593 ZIP codes

tracked ZIP codes, bucketed by value

Each bar is a $0.25K-wide band; taller bars hold more ZIP codes. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source U.S. Treasury Federal Insurance Office · 2022

The local market map

Premium and nonrenewal do not always move together

The highlighted dot is ZIP 21057. Each other dot is a deterministic sample of ZIPs in Maryland, spread across the premium range. Crosshairs mark the published state averages, so this is a comparison of two reported measures, not a quote or a forecast.

State ZIP peer map

Highlighted: ZIP 21057; crosshairs: Maryland averages

Lower premium / higher nonrenewalHigher on bothLower on bothHigher premium / lower nonrenewal$652.8$1999.3$3345.8$4692.3$6038.90.2%1.0%1.9%2.7%3.6%Average annual premiumNonrenewal rate
Source: U.S. Treasury FIO 2022 ZIP-level homeowners insurance filings. The matrix samples 49 ZIPs across the state premium distribution and retains this ZIP.
Read the plotted ZIP values
  • ZIP 21835 · Linkwood $898/yr · 3.41%
  • ZIP 21545 · Mount Savage $1,036/yr · 0.59%
  • ZIP 21716 · Brunswick $1,069/yr · 0.51%
  • ZIP 21234 · Parkville $1,119/yr · 0.56%
  • ZIP 20794 · Jessup $1,170/yr · 1.11%
  • ZIP 21076 · Hanover $1,192/yr · 0.46%
  • ZIP 21001 · Aberdeen $1,216/yr · 0.90%
  • ZIP 21227 · Halethorpe $1,237/yr · 0.78%
  • ZIP 21701 · Frederick $1,254/yr · 0.61%
  • ZIP 21649 · Marydel $1,272/yr · 0.45%
  • ZIP 21713 · Boonsboro $1,288/yr · 0.61%
  • ZIP 21629 · Denton $1,301/yr · 0.96%
  • ZIP 21921 · Elkton $1,325/yr · 1.14%
  • ZIP 21871 · Westover $1,343/yr · 0.42%
  • ZIP 21636 · Goldsboro $1,355/yr · 0.83%
  • ZIP 21917 · Colora $1,375/yr · 0.73%
  • ZIP 20871 · Clarksburg $1,391/yr · 0.42%
  • ZIP 20876 · Germantown $1,405/yr · 0.80%
  • ZIP 20770 · Greenbelt $1,420/yr · 0.49%
  • ZIP 20714 · North Beach $1,428/yr · 0.75%
  • ZIP 21733 · Fairplay $1,439/yr · 0.90%
  • ZIP 20872 · Damascus $1,460/yr · 0.44%
  • ZIP 21814 · Bivalve $1,478/yr · 0.87%
  • ZIP 20707 · Laurel $1,491/yr · 0.64%
  • ZIP 21718 · Burkittsville $1,503/yr · 1.96%
  • ZIP 21661 · Rock Hall $1,530/yr · 0.98%
  • ZIP 20715 · Bowie $1,549/yr · 0.66%
  • ZIP 20746 · Suitland $1,581/yr · 0.94%
  • ZIP 20653 · Lexington Park $1,600/yr · 0.40%
  • ZIP 20716 · Bowie $1,611/yr · 0.81%
  • ZIP 20878 · Gaithersburg $1,638/yr · 0.70%
  • ZIP 21047 · Fallston $1,656/yr · 0.40%
  • ZIP 20620 · Callaway $1,684/yr · 0.88%
  • ZIP 20732 · Chesapeake Beach $1,711/yr · 0.47%
  • ZIP 20735 · Clinton $1,733/yr · 0.87%
  • ZIP 21117 · Owings Mills $1,744/yr · 0.84%
  • ZIP 21212 · Baltimore $1,782/yr · 0.56%
  • ZIP 20685 · Saint Leonard $1,815/yr · 0.51%
  • ZIP 21645 · Kennedyville $1,844/yr · 0.31%
  • ZIP 20779 · Tracys Landing $1,891/yr · 0.75%
  • ZIP 21209 · Baltimore $1,916/yr · 0.65%
  • ZIP 20639 · Huntingtown $1,982/yr · 0.72%
  • ZIP 21057 · Glen Arm (this ZIP) $2,049/yr · 0.67%
  • ZIP 21673 · Trappe $2,113/yr · 0.95%
  • ZIP 21658 · Queenstown $2,252/yr · 0.82%
  • ZIP 20814 · Bethesda $2,355/yr · 0.31%
  • ZIP 21131 · Phoenix $2,475/yr · 0.98%
  • ZIP 21071 · Glyndon $2,705/yr · 0.73%
  • ZIP 21056 · Gibson Island $5,794/yr · 1.49%
Avg Premium (2022)
$2,049/yr
Above-median premium
+10.5% since 2018
Loss Ratio
96.4%
Above-median loss ratio
Claim Frequency
12.61%
Avg severity: $15,652
Nonrenewal Rate
0.67%
Below-median nonrenewal rate
+97.7% change

Data Snapshot: ZIP 21057 (Glen Arm, MD)

For 2022, the average cost of homeowners insurance in ZIP 21057 (Glen Arm, MD) runs $2,049 per year, based on U.S. Treasury FIO's ZIP-level tracking across approximately 94 reported policies. That is 15% above the national average of $1,776 per year, placing this ZIP in the 77th percentile nationally. Maryland homeowners pay $1,627 per year on average; this ZIP diverges by 26% (above), ranking #56 of 422 tracked ZIPs in Maryland by premium. The closest-priced peer within Maryland is Cockeysville (ZIP 21030) at $2,052, essentially matching this ZIP's rate.

At a loss ratio of 96.4%, insurers are operating on thin margins here in this ZIP. Claim frequency, the share of policies with at least one claim, is 12.61%, and the average claim severity (amount paid per claim) is $15,652. The nonrenewal rate here is 0.67%, a rise of 97.7% over the past five years, the share of policies insurers choose not to extend at expiration, often a leading sign of market stress.

Premium data spanning 5 years shows ZIP 21057 costs have risen 10.5% since 2018, from a low of $1,855 to a high of $2,049, an annualized rate of +2.5% per year.

Baltimore County carries a FEMA National Risk Index score of 94.0 (Relatively Moderate), 94th percentile nationally and #2 of 24 Maryland counties - 56% above the state mean of 60.2. Dominant mapped hazard: Heat Wave. Companion scores: Social Vulnerability Index 32.0 · Community Resilience 87.5. This is hazard context from FEMA, not a premium formula.

How to read these numbers

The figures on this page come from the U.S. Treasury Federal Insurance Office, which collects homeowners insurance premium and claims data directly from the largest property insurers in the country. Because the data is aggregated at the ZIP-code level and averaged across many policies, it describes the typical cost in an area rather than a quote for any single home. Two houses on the same street can pay very different premiums depending on their age, construction type, roof condition, prior claims, and the specific coverage limits and deductibles the homeowner selects. The loss ratio shows how much of every premium dollar insurers paid back out as claims; a ratio above one means carriers lost money locally, which often precedes rate increases or carrier exits. Rising nonrenewal and claim frequency reveal how stressed the local market has become. Use these figures to gauge the direction and scale of costs in your area, then request quotes from several licensed carriers before buying or renewing a policy. FIO data aggregates voluntary reporting from the 40 largest homeowners insurers, covering roughly 80% of the U.S. market, so figures represent market averages rather than individual policy quotes; your own premium will vary with dwelling value, deductible, coverage limits, construction type, and insurer-specific underwriting. This page is educational research only and is not insurance advice, homeowners should request quotes from multiple licensed carriers or an independent agent before purchasing or renewing coverage.

How ZIP 21057 Compares

vs National Average
$2,049 vs $1,776
15% above national avg
vs Maryland Average
$2,049 vs $1,627
26% above state avg
National Percentile
77th percentile
More expensive than most ZIPs

Premium History

Average premium in ZIP 21057, 2018–2022

$1,800$1,850$1,900$1,950$2,000$2,050$2,100 20182019202020212022 $2,049
Average homeowners premium per year in ZIP 21057.
Year Avg Premium YoY Change
2018 $1,855 -
2019 $1,975 +6.5%
2020 $2,014 +2.0%
2021 $1,995 -0.9%
2022 $2,049 +2.7%

Filing-window snapshot: ZIP 21057, 2018-2022

5-Year Avg Premium
$1,978
Premium Range
$1,855 - $2,049
Annual Change Rate
+2.5% per year
Years of Data
5 (2018-2022)

Elevated FEMA NRI in Baltimore County

County National Risk Index joined to ZIP 21057 via FIPS 24005. Hazard and vulnerability context from FEMA, not a premium driver and not a quote.

County risk score
94.0
Relatively Moderate · 94th national percentile
In-state county rank
#2
of 24 Maryland counties · state mean 60.2
Top mapped hazard
Heat Wave
Expected annual loss $42,558,303

Social Vulnerability Index 32.0 · Community Resilience 87.5

County hazard ratings

Wildfire
Very Low
Flooding
Relatively High
Earthquake
Relatively Moderate
Hurricane
Relatively Moderate
Tornado
Relatively Moderate
Hail
Relatively Moderate
Winter weather
Very High

Source: FEMA National Risk Index · state rollup: Maryland NRI context · top counties by NRI score.

Nationwide insurance peers outside Maryland for ZIP 21057

Two FIO peer sets for ZIP 21057 in Baltimore County (NRI 94.0, hazard Heat Wave), both outside Maryland. Population floor ≥1,000 matches the rate rankings.

Similar average premium

Nearest other-state ZIPs by average homeowners premium ($2,049/yr here).

Similar nonrenewal rate

Nearest other-state ZIPs by nonrenewal rate (0.67% here).

Source: U.S. Department of the Treasury, Federal Insurance Office (FIO) Homeowners Insurance Data (2018-2022). Premiums are ZIP-level averages and may not reflect individual policy costs

Frequently Asked Questions

How much is homeowners insurance in ZIP 21057?
ZIP 21057 (Glen Arm, MD) tracks close to the national middle for homeowners insurance costs: $2,049 per year as of 2022 (77th percentile, #56 of 422 ZIPs in Maryland). Premiums have changed +10.5% over the past 5 years.
What affects homeowners insurance costs in Glen Arm, MD?
Three figures shape homeowners insurance costs in ZIP 21057: claims frequency (12.61%), loss ratio (96.4%), and nonrenewal rate (0.67%), together placing this ZIP at the 77th national percentile for cost.
Is homeowners insurance expensive in ZIP 21057 compared to the national average?
Nationally, ZIP 21057 lands in the 77th percentile: its $2,049/yr average is 15% above the U.S. figure of $1,776/yr.
What is the nonrenewal rate in ZIP 21057?
The nonrenewal rate in ZIP 21057 is 0.67%, a rise of 97.7% over the past 5 years in Maryland.
How have premiums trended in ZIP 21057 over 5 years?
Over 5 years (2018-2022), premiums in ZIP 21057 have ranged from $1,855 to $2,049, with a 5-year average of $1,978. The annualized change rate is +2.5% per year.
How does ZIP 21057 compare to the Maryland state average?
ZIP 21057 has an average premium of $2,049/yr compared to the Maryland state average of $1,627/yr. This ZIP is 26% above the state average, ranking #56 of 422 tracked ZIPs in Maryland by premium.
What is the FEMA National Risk Index score for ZIP 21057?
County NRI 94.0 (Relatively Moderate) covers ZIP 21057 via Baltimore County FIPS 24005. In-state rank #2 of 24; national percentile 94th; hazard Heat Wave.

What to do with ZIP 21057

This ZIP's premiums run at the 77th national percentile, but a single number is not a quote.

These figures are Treasury FIO aggregates for this ZIP, not a personal insurance quote.

Every figure on PlainInsure is rendered directly from U.S. Treasury Federal Insurance Office data, no number is typed in by an editor. This page draws directly on U.S. Treasury FIO data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.