Champaign County taxpayers would see a total of $48 million in state income tax increases if a tax hike measure passed by the Democrat-controlled Illinois State Senate becomes law.
The Champaign County community that would see the largest increase is Southwest Champaign/Savoy, with a $10.8 million total increase and a $1,032 average increase.
Other communities that would see a large collective increase include West Champaign ($8.4 million), Mahomet ($5.1 million), East Champaign/University of Illinois ($4.5 million), East Urbana ($4.3 million) and West Urbana/University of Illinois ($4.3 million).
Taxpayers from Mahomet ($876), Savoy ($751), Philo ($700) and St. Joseph ($700) would see the highest average increases.
Led by Senate President John Cullerton (D-Chicago), Democrats passed the individual income tax hike last week-- from 3.75 percent to 4.95 percent-- along with a broader set of tax increases on businesses.
If their projections prove correct, individual Illinois taxpayers will send an additional $4.453 billion to Springfield each year as a result of the higher rates. Businesses will pay another $1 billon.
LGIS looked at 2014 income taxes paid by zip code to create a ranking of the highest-paying Champaign County communities.
Its analysis looked at the percentage of total state income taxes paid by zip code, as reported by the Illinois Department of Revenue. It then applied that percentage to the amount Senate Democrats expect their tax hike will raise to calculate an average increase.
The analysis used 2014 tax return data, which is the latest available and also represents a year in which state income taxes were higher-- five percent, or approximately the level to which the Democrats are hoping to raise them.
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Top income tax-paying communities in Champaign County
Which communities pay the highest income taxes in Champaign County?
| Ranking | Communities | Zip | Average State Income Tax Increase | Total Returns filed by Zip |
| 1 | Champaign (Southwest) / Savoy | 61821 | $1,032 | 10,492 |
| 2 | Mahomet | 61822 | $876 | 5,800 |
| 3 | Savoy | 61802 | $751 | 3,296 |
| 4 | Philo | 61820 | $700 | 829 |
| 5 | St. Joseph | 61866 | $700 | 2,797 |
| 6 | Ogden | 61853 | $629 | 574 |
| 7 | Tolono | 61874 | $628 | 1,926 |
| 8 | Sidney | 61873 | $625 | 752 |
| 9 | Champaign (West) | 61880 | $620 | 13,517 |
| 10 | Homer | 61843 | $618 | 849 |
| 11 | Pesotum | 61849 | $599 | 407 |
| 12 | Gifford | 61864 | $581 | 549 |
| 13 | Fisher | 61877 | $575 | 1,118 |
| 14 | Urbana (East) | 61853 | $499 | 8,712 |
| 15 | Thomasboro | 61878 | $483 | 676 |
| 16 | Champaign (East / U of I) | 61847 | $473 | 9,453 |
| 17 | Urbana (West / U of I) | 61859 | $470 | 9,142 |
| 18 | Rantoul | 61863 | $362 | 5,984 |
Source: Illinois Department of Revenue; Blockshopper.com
How much more will your community pay?
If state income taxes are increased to 4.95 percent from 3.75 percent, how much more will taxpayers in your community pay for state government?
| Ranking | Communities | Zip | Estimated State Income Tax Increase |
| 1 | Champaign (Southwest) / Savoy | 61822 | $10,826,208 |
| 2 | Champaign (West) | 61821 | $8,377,611 |
| 3 | Mahomet | 61853 | $5,081,364 |
| 4 | Champaign (East / U of I) | 61820 | $4,467,153 |
| 5 | Urbana (East) | 61802 | $4,345,595 |
| 6 | Urbana (West / U of I) | 61801 | $4,300,394 |
| 7 | Savoy | 61874 | $2,475,096 |
| 8 | Rantoul | 61866 | $2,166,926 |
| 9 | St. Joseph | 61873 | $1,957,382 |
| 10 | Tolono | 61880 | $1,209,724 |
| 11 | Fisher | 61843 | $643,329 |
| 12 | Philo | 61864 | $580,639 |
| 13 | Homer | 61849 | $524,401 |
| 14 | Sidney | 61877 | $470,084 |
| 15 | Ogden | 61859 | $361,097 |
| 16 | Thomasboro | 61878 | $326,732 |
| 17 | Gifford | 61847 | $319,073 |
| 18 | Pesotum | 61863 | $243,746 |
| TOTAL | $48,676,554 |
Sources: Illinois Department of Revenue; Blockshopper.com; Illinois Senate Democrats
*Assumes tax increase will meet Senate Democrats' projections.
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