CONTRIBUTION TO STATE ECONOMIES 
All states and the District of Columbia use special systems to guarantee that auto insurance is available to those who cannot obtain it in the private market. Each type of system is commonly known as an assigned risk plan, although the term technically applies to only one type of plan. The assigned risk and other plans are known in the insurance industry as the shared, or residual, market. Policyholders in assigned risk plans are, as the name suggests, assigned to various insurance companies doing business in the state. Hence the term voluntary (regular) market, where auto insurers are free to select policyholders rather than have them assigned. The chart below shows the number of vehicles insured by state, including those in the voluntary and residual markets.
PRIVATE PASSENGER CARS INSURED
IN THE SHARED AND VOLUNTARY MARKETS, 2006



State

Voluntary

Shared market

Total

Shared market as a percent of total
Alabama3,223,439563,223,4950.002%
Alaska412,301582412,8830.141
Arizona3,879,3401243,879,4640.003
Arkansas1,985,321111,985,3320.001
California22,736,66318,36422,755,0270.081
Colorado3,437,55643,437,560(1)
Connecticut2,398,9061,7772,400,6830.074
Delaware599,916216600,1320.036
D.C.218,8321,082219,9140.492
Florida11,290,2314611,290,277(1)
Georgia6,620,325126,620,337(1)
Hawaii771,4194,973776,3920.641
Idaho1,262,950901,263,0400.007
Illinois7,669,0722,2567,671,3280.029
Indiana4,322,560224,322,5820.001
Iowa2,356,750302,356,7800.001
Kansas2,268,2931,9992,270,2920.088
Kentucky2,924,6885832,925,2710.020
Louisiana2,728,135-44 (2)(2,728,091-0.002
Maine1,030,2501971,030,4470.019
Maryland3,704,43683,9313,788,3672.215
Massachusetts3,955,971198,6444,154,6154.781
Michigan6,287,3372,2316,289,5680.035
Minnesota3,639,668-8 (2)3,639,660(1)
Mississippi1,810,8632011,811,0640.011
Missouri4,029,002954,029,0970.002
Montana760,258435760,6930.057
Nebraska1,453,435111,453,4460.001
Nevada1,704,944361,704,9800.002
New Hampshire877,2371,372878,6090.156
New Jersey5,105,64143,2485,148,8890.840
New Mexico1,360,6491281,360,7770.009
New York9,030,086153,2419,183,3271.669
North Carolina5,229,3671,583,4756,812,84223.243
North Dakota574,0370574,037(1)
Ohio7,939,16707,939,167(1)
Oklahoma2,621,0741792,621,2530.007
Oregon2,639,391122,639,403(1)
Pennsylvania8,377,86136,5068,414,3670.434
Rhode Island648,89226,429675,3213.914
South Carolina3,132,14723,132,149(1)
South Dakota650,544-1 (2)650,543(1)
Tennessee4,095,199634,095,2620.002
TexasNANANANA
Utah1,691,73071,691,737(1)
Vermont468,8471,169470,0160.249
Virginia5,893,0974,6045,897,7010.078
Washington4,318,15704,318,157(1)
West Virginia1,261,5442241,261,7680.018
Wisconsin3,599,727-2 (2)3,599,725(1)
Wyoming473,6134473,6170.001
United States179,470,8682,168,616181,639,4841.194%
(1) Less than 0.001 percent.
(2) Negative numbers represent vehicles owned by drivers who were rejected or cancelled.

NA=Data not available.

Source: Automobile Insurance Plans Service Office.
  • In 2006 (latest data available) 1.2 percent of vehicles were insured in the shared market, compared with 2.9 percent in 1996.

  • The number of vehicles in the shared market nationwide fell 7.5 percent in 2006.

  • North Carolina has the highest percentage of cars in the shared market, 23 percent, followed by Massachusetts with 5 percent and Rhode Island with 4 percent.

  • While North Carolina, Massachusetts and New York have the most vehicles in shared market plans, the number of cars fell in 2006 by 28.3 percent in New York and 19.5 percent in Massachusetts compared with 2005. The number of cars in North Carolina’s plan rose 2.4 percent from 2005 to 2006.

AUTO: COSTS/EXPENDITURES

The average cost of automobile insurance declined by 1.7 percent in 2006, according to a November 2008 report from the National Association of Insurance Commissioners (NAIC). The District of Columbia had the highest average expenditure ($1,164), followed by New Jersey ($1,152), Louisiana ($1,094), New York ($1,083) and Florida ($1,069).
AVERAGE EXPENDITURES FOR AUTO INSURANCE,
UNITED STATES, 1997-2006



Year

Average expenditure

Percent change

Year

Average expenditure

Percent change
1997$7052.0%2002$7868.3%
1998703-0.320038305.6
1999685-2.620048421.4
20006900.72005831-1.3
2001726 5.22006817-1.7
Source: © 2007 National Association of Insurance Commissioners.
  • 77 percent of insured drivers purchase comprehensive coverage in addition to liability insurance, and 72 percent buy collision coverage, according to 2006 NAIC data.

AUTO INSURANCE EXPENDITURES, BY STATE

The table on the following pages shows estimated average expenditures for private passenger automobile insurance by state for 2002 to 2006, providing approximate measures of the relative cost of automobile insurance to consumers in each state. To calculate average expenditures the National Association of Insurance Commissioners assumes that all insured vehicles carry liability coverage but not necessarily collision or comprehensive coverage. The average expenditure measures what consumers actually spend for insurance on each vehicle. It does not equal the sum of liability, collision and comprehensive expenditures because not all policyholders purchase all three coverages.

Expenditures are affected by the coverages purchased as well as other factors. In states where the economy is healthy, people are more likely to purchase new cars. Since new car owners are more likely to purchase physical damage coverages, these states will have a higher average expenditure. The NAIC notes that urban population, traffic density and per capita income have a significant impact on premiums. The latest report shows that high premium states tend also to be highly urban, with higher wage and price levels and greater traffic density. Tort liability and other auto laws, labor costs, liability coverage requirements, theft rates and other factors can also affect auto insurance prices.
AVERAGE EXPENDITURES FOR AUTO INSURANCE BY STATE, 2005-2006


 

2006      

2005  

 

State

Liability

Collision 

Compre-
hensive

Average expenditure

Rank (1)

Average expenditure

Rank (1)

Average expenditure   percent change  2005-2006
Alabama$367$318$135$68435$679370.7%
Alaska5963811589551196811-1.3
Arizona5073102319131492914-1.7
Arkansas3872911616843469434-1.4
California (2)48337611884316842190.2
Colorado4532811887852382921-5.3
Connecticut621335125981109939-1.2
Delaware7062981111,02481,0288-0.3
D.C.6104452611,16411,1871-2.0
Florida7522871131,06951,06460.5
Georgia42437216978822785240.4
Hawaii54230911785315846180.8
Idaho3392321255774858548-1.4
Illinois4102961187402774328-0.4
Indiana3612531116314365841-4.0
Iowa2821991635365055550-3.6
Kansas3002351985794758947-1.7
Kentucky4842661327392875126-1.5
Louisiana6603862091,09431,07851.5
Maine3622701066344264442-1.6
Maryland56432614694912948120.1
Massachusetts6703271271,04261,1134-6.4
Michigan4944151589251393113-0.6
Minnesota4462241737532579223-4.9
Mississippi43029416574626746270.0
Missouri3792621466733668536-1.8
Montana3992411976613768635-3.7
Nebraska3272131895844661944-5.7
Nevada6513441421,0069985102.1
New Hampshire43530010979321792220.2
New Jersey7473781601,15221,1852-2.8
New Mexico45729216573729731300.8
New York7303311531,08341,1253-3.7
North Carolina3422511215964460246-1.0
North Dakota2551962385305155551-4.4
Ohio3822521046543967039-2.3
Oklahoma3842711696593867838-2.9
Oregon4832261037263073829-1.7
Pennsylvania4993091258321885017-2.1
Rhode Island6953771251,03871,0627-2.2
South Carolina47125514975624754250.3
South Dakota2962002025544956649-2.2
Tennessee3632931236544065940-0.8
Texas4543491758202085716-4.3
Utah4242661207023170731-0.7
Vermont3612981296873270032-1.8
Virginia3952641186853370033-2.1
Washington5432601278391784220-0.3
West Virginia5102971808271985915-3.7
Wisconsin3312041235904561545-4.1
Wyoming3342612166394164043-0.2
United States$489$308$140$817$831-1.7%
(1) Ranked by average expenditure.
(2) Preliminary.

Note: Average expenditure=Total written premium/liability car years. A car year is equal to 365 days of insured coverage for a single vehicle. The NAIC does not rank state average expenditures and does not endorse any conclusion drawn from these data.

Source: © 2008 National Association of Insurance Commissioners.
AVERAGE EXPENDITURES FOR AUTO INSURANCE BY STATE, 2002-2004


 

Average
expenditure (1)   

State

2004

2003

2002
Alabama$677$657$627
Alaska974938884
Arizona931921887
Arkansas708698672
California (2)846837779
Colorado850923921
Connecticut991988970
Delaware1,022977900
D.C.1,1851,1351,044
Florida1,0621,018934
Georgia779759739
Hawaii817776739
Idaho590586563
Illinois760762729
Indiana671671648
Iowa580581548
Kansas603611587
Kentucky758739688
Louisiana1,0621,015928
Maine650633587
Maryland947893840
Massachusetts1,1131,052984
Michigan980950887
Minnesota829837801
Mississippi749710681
Missouri702702669
Montana683675628
Nebraska637624590
Nevada939914896
New Hampshire798779733
New Jersey1,2211,1931,125
New Mexico728732706
New York1,1721,1681,100
North Carolina597605588
North Dakota562537505
Ohio680672642
Oklahoma690689654
Oregon753736682
Pennsylvania843813777
Rhode Island1,034997939
South Carolina763745703
South Dakota587564542
Tennessee666650632
Texas 880918864
Utah722733703
Vermont693683650
Virginia702658626
Washington839825791
West Virginia875844778
Wisconsin636621611
Wyoming629618585
United States$842$830$786
(1) Average expenditure=Total written premium/liability car years. A car year is equal to 365 days of insured coverage for a single vehicle.
(2) Preliminary.

Source: © 2008 National Association of Insurance Commissioners.
TOP TEN MOST EXPENSIVE AND LEAST EXPENSIVE STATES
FOR AUTOMOBILE INSURANCE, 2006 (1)



Rank

Most expensive states

Average expenditure

Rank

Least expensive states

Average expenditure
1D.C.$1,1641North Dakota$530
2New Jersey1,1522Iowa536
3Louisiana1,0943South Dakota554
4New York1,0834Idaho577
5Florida1,0695Kansas579
6Massachusetts1,0426Nebraska584
7Rhode Island1,0387Wisconsin590
8Delaware1,0248North Carolina596
9Nevada1,0069Indiana631
10Connecticut98110Maine634
(1) Based on average automobile insurance expenditures.

Source: © 2008 National Association of Insurance Commissioners.
TOP FIVE MOST EXPENSIVE AND LEAST EXPENSIVE CITIES FOR AUTOMOBILE INSURANCE, 2007 (1)


Rank

Most expensive cities

Average annual auto premiums

Rank

Least expensive cities

Average annual auto premiums
1Detroit, MI$5,072 1Eau Claire, WI$869
2Philadelphia, PA3,7792Norfolk, VA954
3Newark, NJ3,3813Raleigh, NC966
4Los Angeles, CA3,0274Bismarck, ND989
5Hempstead, NY2,764 5Burlington, VT1,001
(1) As of June 2007. Assumes $100,000/$300,000/$50,000 liability limits, collision and comprehensive with $500 deductibles, and $100,000/$300,000 uninsured coverage.

Source: Runzheimer International.

  • Auto insurance is more expensive in urban areas because of the higher density of traffic, increased likelihood of theft and vandalism, and greater incidence of fraud.