21st Century vs. Plymouth Rock Insurance

Which insurance provider is right for you? Compare ratings, prices and quotes from 21st Century and Plymouth Rock.

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21st Century vs. Plymouth Rock: What You Need to Know

21st Century Insurance -- formerly 20th Century Insurance -- was founded in 1958 by Louis W. Foster and began offering auto insurance, mainly in California. The company was located in a one-room office in Los Angeles, California and relocated to Woodland Hills, California before moving to Wilmington Delaware, where 21st Century Insurance is now headquartered. Today, 21st Century Insurance sells many lines of insurance, including specialty homeowners insurance, motorcycle insurance and more.

In 1982, the former Massachusetts Insurance Commissioner Jim Stone founded a new car insurance agency committed to the highest level of customer care and satisfaction. Plymouth Rock Assurance is a member of the Plymouth Rock Group of Companies, which together write and manage more than $1 billion in annual auto and homeowners’ insurance premiums. Plymouth Rock Assurance serves the Northeast, specifically Massachusetts, Connecticut, New Hampshire, New Jersey, and Pennsylvania. The Plymouth Rock’s Pledge of Assurance is that you will always have a friendly person answer your call during business hours; your questions will be answered and the matter resolved quickly and accurately; everything about your issues will be explained clearly; if you are unable to get the matter resolved you can speak with a supervisor or manager; and at the end of the call, you will know exactly what to do next and how Plymouth Rock will keep you informed. The pledge also includes the promise that accurate policies and statements will be issued the first time around; claims will be handled professionally and sensitively; physical damage assessments within scheduled hours and without unreasonable delays; guarantee of all repairs by approved providers; and the promise to do the best for customers with extra effort.

Below is a list of average rates, rankings, products and discounts for the two companies. For full company overviews, you can visit 21st Century Overview and Plymouth Rock Assurance Overview.

21st Century vs. Plymouth Rock Assurance: How much are the Average Rates?

Below is a list of the average rates that drivers typically pay with 21st Century and Plymouth Rock Assurance. On average, 21st Century charges approximately $159.62 per month while Plymouth Rock Assurance comes in at around $174.78 per month. For 21st Century, the cheapest state average is California at $159.69 per month and the most expensive is California at $159.69 per month. For Plymouth Rock Assurance, the cheapest state average is at $0.00 per month and the most expensive is at $0.00 per month.

21st Century

Average Rate

Plymouth Rock Assurance

Average Rate


Average Rate

State 21st Century Plymouth Rock Assurance
California $159.69 -

21st Century vs. Plymouth Rock Assurance: Rates by Number of Vehicle


Drivers will typically get a discount if they insure multiple vehicles. Here is a list of average rates that 21st Century and Plymouth Rock Assurance typically charge for drivers who have more than 1 vehicle.

Number of Vehicles 21st Century Plymouth Rock Assurance
1 Vehicle $152.99 $
2 Vehicles $231.36 $

21st Century vs. Plymouth Rock Assurance: Rates by Homeownership


Drivers who own their home rather than rent can sometimes get a small discount. We found that on average 21st Century charges $147.01 per month and Plymouth Rock Assurance charges $ per month for customers who own their home.

Own/Rent 21st Century Plymouth Rock Assurance
Own $147.01 $
Rent $161.44 $

What Are 21st Century and Plymouth Rock Insurance's Ratings?

21st Century and Plymouth Rock both have a similar industry ranking. Each has been rated as having an 'Excellent' financial strength and have received an A+ from the BBB (Better Business Bureau). Compare the two auto insurance companies below and then compare quotes for free to see if you can get a lower rate.

Comparison 21st Century Plymouth Rock
Year Founded 1958 1982
Market Share 6.02% (2017)
BBB Rating A+ A+
Financial Strength Excellent Excellent
JD Power Ranking About Average Among the Best
NAIC Complaint Index 1.47
S&P Rating A+

21st Century or Plymouth Rock: Insurance Products Offered

What insurance products are offered by 21st Century and Plymouth Rock? Both companies offer auto insurance coverage. 21st Century offers additional products including Flood, Life, Motorcyle, Specialty Homeowners Insurance and more. Plymouth Rock offers Commercial Auto Insurance, Condo, Flood, Home, and Renters Insurance. Learn more about the two companies below.

Insurance 21st Century Plymouth Rock
Antique Auto Insurance
ATV Insurance
Auto Insurance
Auto Mechanical Breakdown Insurance
Boat Insurance
Commercial Auto Insurance
Condo Insurance
Flood Insurance
Home Insurance
Life Insurance
Manufactured/Mobile home
Motorcycle Insurance
Personal Watercraft Insurance
Renters Insurance
Specialty Homeowners Insurance
Umbrella Insurance

21st Century or Plymouth Rock: Ways to Save

21st Century and Plymouth Rock both offer a variety of discounts to their policyholders. 21st Century offers Mature Driver, Multi-Car, Paperless Billing, and Safe Driver discounts. Plymouth Rock offers significantly more options to save. Discounts include No Accident, Away at School, New Driver, Pay-in-Full and more. A complete list of discounts is listed below. Get detailed information on the two insurance companies and find the right policy for you.

21st Century Plymouth Rock
Mature Driver Discount Affinity Group Discounts
Multi-Car Discount Health Care Primary
Paperless & Autopay Discount No Accident Discount
Safe Driver Discount AARP Member Program of MA
Away at School Discount
eDocuments Discount
New Driver Discount
Motor Club Discount
Age of Home Discount
Companion Policy Discount
Defensive Driving Course Discounts
Pay-in-Full Discount
New Jersey Teachers Auto Insurance
Anti-theft Discount
Driver Training Discount
Good Student Discount
Safety Pledge Discount
New Business Discount
eDocuments Savings
Connected Homes Discount (only in PA and NJ)

Pros & Cons of 21st Century & Plymouth Rock


21st Century
  • 21st Century offers affordable rates to good drivers in California and a few other states.
  • 21st Century is a financially strong company.
  • 21st Century offers many lines of insurance and multi-policy discounts.
Plymouth Rock
  • Plymouth Rock offers many discounts for home and auto.
  • Boasts financial strength.
  • Offers tiered auto insurance protection options, which are more economical than buying a la carte.


21st Century
  • 21st Century mainly does business in California.
Plymouth Rock
  • Plymouth Rock only serves New Jersey, Massachusetts, Connecticut, New Hampshire, Pennsylvania, and New York

21st Century or Plymouth Rock Mobile Apps Options

The 21st Century Mobile app is available for iOS and android. It enables you to view your policy, pay bills, report a claim, receive roadside assistance and more. The iPhone app even has other functions, like finding nearby restaurants with good ratings.

The Plymouth Rock Mobile app allows access to your policy, 24 hours a day, 7 days a week. You can use it to report a claim, schedule an inspection or submit photos of the damages and/or claim scene. You can also access claim information and view copies of vehicle appraisals.

21st Century Mobile App
iOS      1.9 5 user reviews
Android      3.2 934 user reviews
Plymouth Rock Mobile App
     1.3107 user reviews
     3.0127 user reviews

21st Century & Plymouth Rock Contact Info

21st Century Contact Info
Address 3 Beaver Valley Road, Wilmington, DE 19803
Phone 1-877-401-8181
Website https://www.21st.com/
Facebook https://www.facebook.com/21stcenturyinsurance/
Twitter https://twitter.com/21stCenturyAuto
Youtube https://www.youtube.com/channel
Linkedin https://www.linkedin.com/company/21st-century-insurance/about/
Plymouth Rock Contact Info
Address PO Box 900, Lincroft, NJ 07738-0900
Phone 1 (800) 437-3535
Website https://www.plymouthrock.com/
Facebook https://www.facebook.com/PlymouthRockAssurance/
Youtube https://www.youtube.com/watch?v=wEHtWA74PyY
Twitter https://twitter.com/PlymouthRock

The statistics listed on this page are from our own in house reporting. We track and record quotes that carriers have provided based on various criteria. The rates and averages shown on this page should only be used as an estimate.

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