Belief in God among adults in Illinois by religious group (2014) Switch to: Religious tradition among adults in Illinois by belief in God
% of adults in Illinois who say they…
| Religious tradition | Believe in God; absolutely certain | Believe in God; fairly certain | Believe in God; not too/not at all certain | Believe in God; don't know | Do not believe in God | Other/don't know if they believe in God | Sample size |
|---|---|---|---|---|---|---|---|
| Catholic | 64% | 27% | 7% | 1% | 2% | 1% | 356 |
| Evangelical Protestant | 84% | 14% | < 1% | 1% | < 1% | < 1% | 272 |
| Mainline Protestant | 68% | 26% | 3% | 1% | 1% | 1% | 241 |
| Unaffiliated (religious "nones") | 29% | 22% | 10% | < 1% | 33% | 6% | 256 |
Sample sizes and margins of error vary from subgroup to subgroup, from year to year and from state to state. You can see the sample size for the estimates in this chart on rollover or in the last column of the table. And visit this table to see approximate margins of error for a group of a given size. Readers should always bear in mind the approximate margin of error for the group they are examining when making comparisons with other groups or assessing the significance of trends over time. For full question wording, see the survey questionnaire.
Learn More: Believe in God; absolutely certain, Believe in God; fairly certain, Do not believe in God
