Illinois

Water Systems

The reports below display the different types of water system usage in Illinois for the year 2008.

Total Number of Systems

System Type	Number of Systems
CWS	1,765
NTNCWS	395
TNCWS	3,604

How Illinois Compares to Other States

• Illinois ranked 8th in CWS Systems with 1,765 total CWS Systems in 2008. The average for all states was 993 CWS Systems.



• Illinois ranked 17th in NTNCWS Systems with 395 total NTNCWS Systems in 2008. The average for all states was 360 NTNCWS Systems.



• Illinois ranked 7th in TNCWS Systems with 3,604 total TNCWS Systems in 2008. The average for all states was 1,646 TNCWS Systems.

Total Number of Systems Expressed as Percentage

The results in the charts above represent the total number of each water system type. The chart below displays the same data, but expressed as total percentage of overall water systems.

Total Population Served

System Type	Population Served
CWS	12,003,424
NTNCWS	128,399
TNCWS	364,183

How Illinois Compares to Other States

• Illinois ranked 5th in total population served by CWS Systems with 12,003,424 people served in 2008. The average for all states was 5,598,611 people served by CWS Systems.



• Illinois ranked 16th in total population served by NTNCWS Systems with 128,399 people served in 2008. The average for all states was 115,668 people served by NTNCWS Systems.



• Illinois ranked 11th in total population served by TNCWS Systems with 364,183 people served in 2008. The average for all states was 265,594 people served by TNCWS Systems.

Total Population Served Expressed as Percentage

The results in the charts above represent the total population served broken down by type of water system. The chart below displays the same data, but expressed as total percentage of overall population served.