Financial report context:
part i item 1 . business our company founded in 1886 , american water works company , inc. , ( the 201ccompany , 201d 201camerican water 201d or 201caww 201d ) is a delaware holding company . american water is the most geographically diversified , as well as the largest publicly-traded , united states water and wastewater utility company , as measured by both operating revenues and population served . as a holding company , we conduct substantially all of our business operations through our subsidiaries . our approximately 6400 employees provide an estimated 15 million people with drinking water , wastewater and/or other water-related services in 47 states and one canadian province . operating segments we report our results of operations in two operating segments : the regulated businesses and the market- based operations . additional information with respect to our operating segment results is included in the section entitled 201citem 7 2014management 2019s discussion and analysis of financial condition and results of operations , 201d and note 18 of the consolidated financial statements . regulated businesses our primary business involves the ownership of subsidiaries that provide water and wastewater utility services to residential , commercial , industrial and other customers , including sale for resale and public authority customers . we report the results of this business in our regulated businesses segment . our subsidiaries that provide these services are generally subject to economic regulation by certain state commissions or other entities engaged in economic regulation , hereafter referred to as public utility commissions , or 201cpucs , 201d of the states in which we operate . the federal and state governments also regulate environmental , health and safety , and water quality matters . our regulated businesses segment operating revenues were $ 2674.3 million for 2014 , $ 2539.9 for 2013 , $ 2564.4 million for 2012 , accounting for 88.8% ( 88.8 % ) , 90.1% ( 90.1 % ) and 89.9% ( 89.9 % ) , respectively , of total operating revenues for the same periods . the following table sets forth our regulated businesses operating revenues , number of customers and an estimate of population served as of december 31 , 2014 : operating revenues ( in millions ) % (  % ) of total number of customers % (  % ) of total estimated population served ( in millions ) % (  % ) of total .

Financial table:
new jersey: pennsylvania; operatingrevenues ( in millions ) $ 652.3: 605.4; % (  % ) of total 24.5% ( 24.5 % ): 22.6% ( 22.6 % ); number ofcustomers 648066: 666415; % (  % ) of total 20.2% ( 20.2 % ): 20.7% ( 20.7 % ); estimatedpopulationserved ( in millions ) 2.7: 2.2; % (  % ) of total 22.7% ( 22.7 % ): 18.5% ( 18.5 % )
new jersey: missouri; operatingrevenues ( in millions ) $ 652.3: 270.2; % (  % ) of total 24.5% ( 24.5 % ): 10.1% ( 10.1 % ); number ofcustomers 648066: 464498; % (  % ) of total 20.2% ( 20.2 % ): 14.4% ( 14.4 % ); estimatedpopulationserved ( in millions ) 2.7: 1.5; % (  % ) of total 22.7% ( 22.7 % ): 12.7% ( 12.7 % )
new jersey: illinois ( a ); operatingrevenues ( in millions ) $ 652.3: 262.3; % (  % ) of total 24.5% ( 24.5 % ): 9.8% ( 9.8 % ); number ofcustomers 648066: 312017; % (  % ) of total 20.2% ( 20.2 % ): 9.7% ( 9.7 % ); estimatedpopulationserved ( in millions ) 2.7: 1.3; % (  % ) of total 22.7% ( 22.7 % ): 10.9% ( 10.9 % )
new jersey: california; operatingrevenues ( in millions ) $ 652.3: 209.8; % (  % ) of total 24.5% ( 24.5 % ): 7.8% ( 7.8 % ); number ofcustomers 648066: 174198; % (  % ) of total 20.2% ( 20.2 % ): 5.4% ( 5.4 % ); estimatedpopulationserved ( in millions ) 2.7: 0.6; % (  % ) of total 22.7% ( 22.7 % ): 5.0% ( 5.0 % )
new jersey: indiana; operatingrevenues ( in millions ) $ 652.3: 200.6; % (  % ) of total 24.5% ( 24.5 % ): 7.5% ( 7.5 % ); number ofcustomers 648066: 293666; % (  % ) of total 20.2% ( 20.2 % ): 9.1% ( 9.1 % ); estimatedpopulationserved ( in millions ) 2.7: 1.2; % (  % ) of total 22.7% ( 22.7 % ): 10.1% ( 10.1 % )
new jersey: west virginia ( b ); operatingrevenues ( in millions ) $ 652.3: 127.0; % (  % ) of total 24.5% ( 24.5 % ): 4.7% ( 4.7 % ); number ofcustomers 648066: 170371; % (  % ) of total 20.2% ( 20.2 % ): 5.3% ( 5.3 % ); estimatedpopulationserved ( in millions ) 2.7: 0.6; % (  % ) of total 22.7% ( 22.7 % ): 5.0% ( 5.0 % )
new jersey: subtotal ( top seven states ); operatingrevenues ( in millions ) $ 652.3: 2327.6; % (  % ) of total 24.5% ( 24.5 % ): 87.0% ( 87.0 % ); number ofcustomers 648066: 2729231; % (  % ) of total 20.2% ( 20.2 % ): 84.8% ( 84.8 % ); estimatedpopulationserved ( in millions ) 2.7: 10.1; % (  % ) of total 22.7% ( 22.7 % ): 84.9% ( 84.9 % )
new jersey: other ( c ); operatingrevenues ( in millions ) $ 652.3: 346.7; % (  % ) of total 24.5% ( 24.5 % ): 13.0% ( 13.0 % ); number ofcustomers 648066: 489961; % (  % ) of total 20.2% ( 20.2 % ): 15.2% ( 15.2 % ); estimatedpopulationserved ( in millions ) 2.7: 1.8; % (  % ) of total 22.7% ( 22.7 % ): 15.1% ( 15.1 % )
new jersey: total regulated businesses; operatingrevenues ( in millions ) $ 652.3: $ 2674.3; % (  % ) of total 24.5% ( 24.5 % ): 100.0% ( 100.0 % ); number ofcustomers 648066: 3219192; % (  % ) of total 20.2% ( 20.2 % ): 100.0% ( 100.0 % ); estimatedpopulationserved ( in millions ) 2.7: 11.9; % (  % ) of total 22.7% ( 22.7 % ): 100.0% ( 100.0 % )

Additional report context:
( a ) includes illinois-american water company , which we refer to as ilawc and american lake water company , also a regulated subsidiary in illinois. .

Question: what is approximate customer penetration percentage in the total regulated businesses?
Answer: 27%