A number of links to some Crime Statistics, Prevention and Insurance Resources:

This Old Campground
http://www.thisoldcampsite.com/This_old_campsite4/Trailer_Theft.html
RV Theft Article

Lets-Getaway.com
http://www.lets-getaway.com/theftprevention.htm
Theft Prevention, Towing, Tow Vehicle, Cooking, Maintenance, Communications, Pwr Options, Accessories, Insurance

SafeWise
http://www.safewise.com/blog/keep-rv-safe-theft/
RV Theft

RV Net
https://www.rv.net/forum/index.cfm/fuseaction/thread/tid/23671699/print/true.cfm
RV Crime Blog

IRV2.com
http://www.irv2.com/blog/2015/01/rv-theft-prevention-tips/
RV Crime

Do It Yourself RV
http://www.doityourselfrv.com/need-rv-security-system/
Security Devices - Security Statistics

RV'rs On-Line
http://www.rversonline.org/03CCCrime.html
Crime Prevention - (Excellent suggestions)

RV Dreams.com
http://91511.activeboard.com/forum.spark?aBID=91511&p=3&topicID=10506862
Blog about Full Timer Security

RV Dreams.com
http://www.rv-dreams.com/rv-insurance-claims1.html
Top 5 Insurance Claims

Love to Know
http://camping.lovetoknow.com/Crime_in_RV_Trailers
Campground Statistics and Prevention

North Kitsap Herald (Idaho)
http://www.northkitsapherald.com/news/262939811.html#
Poulsbo Article about Power Cord Thefts (2014)

Gipsy Journal RV
http://gypsyjournalrv.com/2014/06/10-myths-about-the-rv-lifestyle/
10 Myths about the RV Lifestyle

Woodalls - Campground Management
http://www.woodallscm.com/2015/07/suspect-caught-in-texas-rv-park-thefts/
Article - Texas RV Park Thefts - July 2015

Big 81 Radio - Pennington County, South Dakota
http://www.kbhbradio.com/news/pennington-county-authorities-investigating-rv-battery-thefts/article_1c5cab54-cbef-11e3-8f88-0017a43b2370.html
Article - South Dakota Battery Thefts

RV Security Systems
http://www.rvsecurity.us/
RV Security Company - Wireless DYI

FIAMMA
http://www.fiamma.com/EN/fiamma_world/prevention_thefts/
Theft Prevention

Trusted Choice
https://www.trustedchoice.com/rv-insurance/rate-cost/
About RV Insurance

AIS - Auto Insurance Specialties
http://blog.aisinsurance.com/2014/02/03/why-california-leads-the-nation-in-vehicle-theft-and-how-to-protect-your-car/#.VdnMKpfzgzg
Article - Auto Theft - California #1 State

Safe Guard the World Security
http://www.safeguardtheworld.com/statistics.html
Home Crime Statistics and Prevention

RV Daily Report
http://rvdailyreport.com/international/shield-total-insurance-says-increase-in-motorhome-theft/
European RV Theft Information

NOTE No particular company is endorsed over another and they are not in any particular order.

Gieco Insurance
https://www.geico.com/getaquote/rv/
Insurance Policy Company

PPL RV Insurance
http://www.pplmotorhomes.com/insurance/5th-wheel-insurance.htm
Insurance Policy Company

Blue Sky RV Insurance
http://blueskyrvinsurance.com/
Insurance Policy Company

Safeco Insurance Company
http://www.safeco.com/rv-insurance
Insurance Policy Company

ExplorerRV Insurance
http://www.explorerrv.com/rvonlinequote?utm_campaign=Bing&utm_medium=cpc&utm_source=PPC
Insurance Policy Company

Esurance - Allstate
https://www.esurance.com/insurance/rv
Insurance Policy Company

National Interstate Insurance
http://www.nationalinterstate.com/PersonalLines/Rv.aspx
Insurance Policy Company

Foremost Insurance
http://www.foremost.com/products/travel-trailer/index.asp
Insurance Policy Company

RV America
http://rvainsurance.com/coverage-details/rv/fire-flood-and-theft/
Insurance Policy Company

Good Sam Insurance
http://www.goodsamrvinsurance.com/
Insurance Policy Company

National General
http://www.nationalgeneral.com/
Insurance Policy Company

Nationwide Insurance
http://www.nationwide.com/rv-insurance.jsp
Insurance Policy Company

RBC Insurance
http://www.rbcinsurance.com/car-insurance/rv-insurance.html
Insurance Policy Company

Metlife
https://www.metlife.com/individual/insurance/auto-insurance/rv-insurance.html#basics
Insurance Policy Company

RV Direct
http://www.rvdirectinsurance.com/
Insurance Policy Company

GipCTravelers

Great list. Thank you.