What Software Developers earn in Lake County, IL
If you are weighing a move or a job offer, start with $134,380: the median annual pay for Software Developers in Lake County, IL. Spread over a standard 2,080-hour work year, that is $64.61 an hour. Because the wage survey covers the whole Chicago-Naperville-Elgin, IL-IN metropolitan area, the number reflects employers across the region rather than a single town or a single company.
The mean wage is $141,640, which is 5.4% above the median, a sign that a group of high earners lifts the average. The survey counts about 40,370 people working in this occupation across the Chicago-Naperville-Elgin, IL-IN metropolitan area, so the estimate rests on a substantial pool of workers. Lake County, IL has roughly 714,223 residents, according to the population figures used by the rent data.
The salary range, from entry level to top earners
Pay for Software Developers in the Chicago-Naperville-Elgin, IL-IN metropolitan area is not one number. The lowest-paid tenth of workers earn up to $83,820 a year ($40.30 an hour), while the highest-paid tenth earn $203,410 or more ($97.79 an hour). That is a gap of $119,590 between the bottom and the top of the scale. The middle half of workers falls between $104,530 at the 25th percentile and $167,650 at the 75th percentile. A top-tier earner makes 2.4 times what someone at the bottom makes, so experience, certification and employer all matter.
What the hourly rate looks like
Employers quote this occupation by the hour or by the year, so here are both: $64.61 an hour or $134,380 a year at the median for Lake County, IL. Before any deductions, that is $11,198 a month, $5,168 every two weeks and $2,584 each week. After taxes the same job pays $46.28 per hour of take-home income, which is the number that actually has to cover rent and groceries.
How pay in Lake County, IL compares
Compared with the Illinois average
A worker in this occupation in Lake County, IL earns $3,113 more than the Illinois average of $131,267, a premium of 2.4%. Over a year that premium is worth $3,113 before tax and roughly $2,230 after tax. Within Illinois, Lake County, IL already has the highest median we track for this job.
Compared with the national average
The national employment-weighted average for Software Developers is $146,295 across the contiguous United States. At $134,380, Lake County, IL pays $11,915 less, which is 8.1% below that benchmark. Keep in mind that a higher salary only helps if living costs do not rise faster, which is why the cost sections below matter as much as the headline number.
Where this job ranks in Lake County, IL
Among the 618 occupations with published wages in Lake County, IL, Software Developers ranks number 40 by median pay, ahead of about 94% of them. The best-paying occupation we track here is Financial Managers at $168,810 a year, which is $34,430 more than the median for Software Developers.
From gross pay to take-home pay
Three separate tax bills sit between the gross salary and the bank account: federal income tax, FICA, and state income tax. For Software Developers earning the Lake County, IL median of $134,380, they add up to $38,109. The result is $96,271 of take-home pay a year ($8,023 a month), based on a single filer using the standard deduction.
Put another way, of every $100 earned, about $28 goes to taxes and $72 reaches the paycheck. The overall effective tax rate is 28.4%.
Federal income tax
After the $15,750 standard deduction, taxable income is $118,630. Federal brackets are marginal, so only the slice of income above each threshold is taxed at the higher rate; the last dollars of this salary fall in the 24% bracket. The resulting federal income tax is $21,318, an effective 15.9% of gross pay, well below the 24% marginal rate because the lower brackets are cheaper.
Social Security and Medicare (FICA)
Payroll taxes are a flat percentage of wages. Social Security takes 6.2% up to a wage base of $176,100, which costs $8,332 on this salary. Medicare takes 1.45%, or $1,949. FICA totals $10,280, which is 7.6% of gross pay.
State income tax in Illinois
Illinois income tax on this salary is $6,511 a year, or 4.8% of gross pay, after the state's own deductions and exemptions are applied. That is 31% of the federal income tax bill, and it comes out to $543 a month. Local taxes such as county or city income taxes are not included, so a few jurisdictions may withhold slightly more.
A cross-check with IRS data for Lake County, IL
IRS Statistics of Income data for Lake County, IL show an average adjusted gross income of $147,648 per return and an average effective federal income tax rate of 18.4% across all filers. Filers in the $100,000 to under $200,000 bracket, where this salary falls, paid an average of 11.4%, compared with the 15.9% estimated here for a single filer taking the standard deduction. Gaps between the two reflect filing status, dependents, credits and other income, none of which a single-person wage estimate includes.
Cost of living in Lake County, IL
Take-home pay only means something next to what life costs. We price four basics for one adult in Lake County, IL: a one-bedroom apartment, food, home energy and gasoline. All of them are converted to annual figures first, then compared with the $96,271 of take-home pay.
Rent
Housing is the largest line in most budgets. For Lake County, IL, HUD sets the Fair Market Rent for a one-bedroom unit at $1,780 a month ($21,360 a year), and at $2,011 for two bedrooms. For Software Developers, a one-bedroom absorbs 22.2% of take-home pay and 15.9% of gross pay.
Food
The USDA Thrifty Food Plan (August 2026) puts the cost of a nutritious home-cooked diet for an adult at about $3,436 a year, which is $286 a month or $66.07 a week. That equals 2.6% of gross pay for Software Developers in Lake County, IL. It is a thrifty budget with no restaurant meals, so treat it as a floor.
Energy and gasoline
Using Illinois residential prices from the Energy Information Administration and national household averages for consumption, electricity costs about $1,677 a year and other home energy such as natural gas about $434, for $2,110 in total. Gasoline in Illinois averages $3.18 per gallon; at about 463 gallons a year (11,106 miles at 24 miles per gallon) fuel adds $1,471.
What is left over
Rent, food, energy and gasoline cost $28,377 a year in Lake County, IL. Subtract that from $96,271 of take-home pay and $67,894 remains, which is $5,658 a month of breathing room. That margin equals 50.5% of gross pay, a comfortable cushion by common budgeting rules.
Can Software Developers afford to live in Lake County, IL?
The 30% rent guideline
A common rule of thumb says rent should stay under 30% of gross income. For a gross salary of $134,380 that ceiling is $3,360 a month. The one-bedroom Fair Market Rent of $1,780 is $1,580 under it, so rent fits the guideline. Put as a wage, covering a one-bedroom at the 30% guideline takes $34.23 an hour; the median for Software Developers is $64.61, which is 89% above that mark. Another way to see it: at $46.28 of take-home pay an hour, a one-bedroom takes about 8.9 working hours every week.
Splitting a two-bedroom
Sharing a two-bedroom at $2,011 a month means $1,006 each. Compared with renting a one-bedroom alone, that saves $9,294 a year. With a roommate, the yearly margin after the basics becomes $77,188.
How fast you can save
At $5,658 a month of margin, building a $10,000 emergency fund would take about 2 months. Setting aside half of the margin stretches the same goal to about 4 months. These figures ignore interest, raises and any spending beyond the four basics.
Frequently asked questions about Software Developers pay in Lake County, IL
How much do Software Developers make per hour in Lake County, IL?
The median is $64.61 per hour, based on $134,380 a year over 2,080 hours. Hourly pay runs from about $40.30 at the 10th percentile to $97.79 at the 90th percentile.
How much do Software Developers take home after taxes in Lake County, IL?
After federal income tax, FICA and state income tax, the median salary of $134,380 becomes $96,271 a year. That is $8,023 a month, $3,703 every two weeks or $1,851 a week.
How much tax do Software Developers pay in Lake County, IL?
Total taxes are $38,109 a year, an effective rate of 28.4%: $21,318 federal income tax, $10,280 FICA and $6,511 Illinois income tax.
Do Software Developers earn more in Lake County, IL than elsewhere in Illinois?
Yes. The local median of $134,380 is +2.4% versus the Illinois average of $131,267, a difference of $3,113 a year.
Can Software Developers afford a one-bedroom apartment in Lake County, IL?
A one-bedroom costs $1,780 a month against take-home pay of $8,023, which is 22.2% of take-home pay. That meets the 30%-of-gross guideline, which allows up to $3,360 a month.
What is the monthly budget margin for Software Developers in Lake County, IL?
About $5,658 a month ($67,894 a year) remains after a one-bedroom apartment, food, home energy and gasoline, which together cost $28,377 a year.
What hourly wage covers a one-bedroom in Lake County, IL at the 30% guideline?
$34.23 an hour for a full-time schedule, calculated as the $21,360 annual rent divided by 0.30 and by 2,080 hours. The median for Software Developers is $64.61.
How we calculated these numbers
Wages are May 2025 medians from the Bureau of Labor Statistics Occupational Employment and Wage Statistics survey for the Chicago-Naperville-Elgin, IL-IN metropolitan area; hourly-only values are annualized at 2,080 hours. Rents are HUD Fair Market Rents, food costs come from the USDA Thrifty Food Plan, and energy prices come from the Energy Information Administration. County-level tax statistics come from the IRS Statistics of Income.
Taxes use tax-year 2025 federal brackets, FICA rates and the Illinois rules for a single filer with wage income only. Figures are estimates for planning and comparison, not tax or financial advice, and they exclude local income taxes, benefits, retirement contributions and individual circumstances.