What Mental Health and Substance Abuse Social Workers earn in Middlesex County, MA
According to the latest federal wage data for the Boston-Cambridge-Newton, MA-NH metropolitan area, the median pay for Mental Health and Substance Abuse Social Workers in Middlesex County, MA is $63,830 a year, or $30.69 an hour. After federal income tax, Social Security, Medicare and state income tax, the paycheck shrinks to $50,444 a year, and rent, food and energy take another bite. The sections below walk through each step with the actual math for Middlesex County, MA.
The mean wage is $71,030, which is 11.3% above the median, a sign that a group of high earners lifts the average. The survey counts about 4,660 people working in this occupation across the Boston-Cambridge-Newton, MA-NH metropolitan area, so the estimate rests on a substantial pool of workers. Middlesex County, MA has roughly 1,638,365 residents, according to the population figures used by the rent data.
The salary range, from entry level to top earners
Pay for Mental Health and Substance Abuse Social Workers in the Boston-Cambridge-Newton, MA-NH metropolitan area is not one number. The lowest-paid tenth of workers earn up to $49,280 a year ($23.69 an hour), while the highest-paid tenth earn $102,830 or more ($49.44 an hour). That is a gap of $53,550 between the bottom and the top of the scale. The middle half of workers falls between $58,090 at the 25th percentile and $78,420 at the 75th percentile. A top-tier earner makes 2.1 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: $30.69 an hour or $63,830 a year at the median for Middlesex County, MA. Before any deductions, that is $5,319 a month, $2,455 every two weeks and $1,228 each week. After taxes the same job pays $24.25 per hour of take-home income, which is the number that actually has to cover rent and groceries.
About this occupation: Mental Health and Substance Abuse Social Workers
The U.S. Department of Labor's O*NET database describes the work of Mental Health and Substance Abuse Social Workers this way: "Assess and treat individuals with mental, emotional, or substance abuse problems, including abuse of alcohol, tobacco, and/or other drugs. Activities may include individual and group therapy, crisis intervention, case management, client advocacy, prevention, and education."
Core tasks recorded by O*NET include: "Counsel clients in individual or group sessions to assist them in dealing with substance abuse, mental or physical illness, poverty, unemployment, or physical abuse"; "Collaborate with counselors, physicians, or nurses to plan or coordinate treatment, drawing on social work experience and patient needs"; "Monitor, evaluate, and record client progress with respect to treatment goals"; "Refer patient, client, or family to community resources for housing or treatment to assist in recovery from mental or physical illness, following through to ensure service efficacy".
Job outlook for Mental Health and Substance Abuse Social Workers
The Bureau of Labor Statistics projects national employment in this occupation to grow from 138,900 jobs in 2025 to 153,200 in 2035, a change of +10.3%, faster than the 3.5% projected for all occupations. The projection counts 12,500 openings a year on average, including positions created by growth and positions left by workers who retire or move to another occupation; that equals 9.0% of current employment each year.
Typical entry-level education: master's degree. Typical on-the-job training to reach competency: internship/residency. BLS lists a national median annual wage of $60,280 for this occupation; the Middlesex County, MA median of $63,830 is 5.9% above it.
How pay in Middlesex County, MA compares
Compared with the Massachusetts average
A worker in this occupation in Middlesex County, MA earns $1,297 more than the Massachusetts average of $62,533, a premium of 2.1%. Over a year that premium is worth $1,297 before tax and roughly $1,025 after tax. Within Massachusetts, Middlesex County, MA already has the highest median we track for this job.
Compared with the national average
Nationally, Mental Health and Substance Abuse Social Workers earn an employment-weighted average of $63,633 across the contiguous United States, so $63,830 in Middlesex County, MA is essentially average. 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 Middlesex County, MA
Among the 581 occupations with published wages in Middlesex County, MA, Mental Health and Substance Abuse Social Workers ranks number 333 by median pay, ahead of about 43% of them. The best-paying occupation we track here is Natural Sciences Managers at $291,000 a year, which is $227,170 more than the median for Mental Health and Substance Abuse Social Workers.
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 Mental Health and Substance Abuse Social Workers earning the Middlesex County, MA median of $63,830, they add up to $13,386. The result is $50,444 of take-home pay a year ($4,204 a month), based on a single filer using the standard deduction.
Put another way, of every $100 earned, about $21 goes to taxes and $79 reaches the paycheck. The overall effective tax rate is 21.0%.
Federal income tax
After the $15,750 standard deduction, taxable income is $48,080. 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 12% bracket. The resulting federal income tax is $5,531, an effective 8.7% of gross pay, well below the 12% 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 $3,957 on this salary. Medicare takes 1.45%, or $926. FICA totals $4,883, which is 7.7% of gross pay.
State income tax in Massachusetts
Massachusetts income tax on this salary is $2,972 a year, or 4.7% of gross pay, after the state's own deductions and exemptions are applied. That is 54% of the federal income tax bill, and it comes out to $248 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 Middlesex County, MA
IRS Statistics of Income data for Middlesex County, MA show an average adjusted gross income of $155,231 per return and an average effective federal income tax rate of 18.6% across all filers. Filers in the $50,000 to under $75,000 bracket, where this salary falls, paid an average of 8.3%, compared with the 8.7% 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 Middlesex County, MA
Take-home pay only means something next to what life costs. We price four basics for one adult in Middlesex County, MA: a one-bedroom apartment, food, home energy and gasoline. All of them are converted to annual figures first, then compared with the $50,444 of take-home pay.
Rent
Housing is the largest line in most budgets. For Middlesex County, MA, HUD sets the Fair Market Rent for a one-bedroom unit at $2,382 a month ($28,584 a year), and at $2,884 for two bedrooms. For Mental Health and Substance Abuse Social Workers, a one-bedroom absorbs 56.7% of take-home pay and 44.8% 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 5.4% of gross pay for Mental Health and Substance Abuse Social Workers in Middlesex County, MA. It is a thrifty budget with no restaurant meals, so treat it as a floor.
Energy and gasoline
Using Massachusetts residential prices from the Energy Information Administration and national household averages for consumption, electricity costs about $3,101 a year and other home energy such as natural gas about $867, for $3,968 in total. Gasoline in Massachusetts averages $3.33 per gallon; at about 463 gallons a year (11,106 miles at 24 miles per gallon) fuel adds $1,542.
What is left over
Rent, food, energy and gasoline cost $37,529 a year in Middlesex County, MA. Subtract that from $50,444 of take-home pay and $12,915 remains, which is $1,076 a month of breathing room. That margin equals 20.2% of gross pay, a comfortable cushion by common budgeting rules.
Local housing and commute data for Middlesex County, MA
The budget above covers rent, food, energy and gasoline. Three more local facts shape what a paycheck buys in Middlesex County, MA: property taxes, housing prices and the daily commute. The figures below are exact U.S. Census Bureau American Community Survey 2020-2024 5-year estimates for Middlesex County, MA, set beside the Massachusetts and national medians.
Property taxes in Middlesex County, MA
Homeowners in Middlesex County, MA pay a median of $7,501 a year in real estate taxes, 25% above the Massachusetts median of $5,992 and 140% above the U.S. median of $3,119. Against a median home value of $727,800, the median tax bill is 1.03% of that value (the ratio of the two county medians). For a worker paid the local Mental Health and Substance Abuse Social Workers median of $63,830, a tax bill of that size would equal 11.8% of gross pay, which matters for anyone planning to buy rather than rent.
Rents, home prices and household income in Middlesex County, MA
Renters in Middlesex County, MA pay a median gross rent of $2,201 a month in the Census survey, 25% above the Massachusetts median of $1,762. HUD's Fair Market Rent for a one-bedroom apartment, which this site uses in the budget, is $2,382 a month; the two measures differ because the Census figure covers units of every size that renters already occupy, while the HUD figure is a one-bedroom benchmark. The median value of an owner-occupied home is $727,800, 29% above the Massachusetts median of $562,100. Median household income is $130,847, 26% above the Massachusetts median of $103,960, so a year of one-bedroom Fair Market Rent equals 21.8% of that income.
Commuting in Middlesex County, MA
Workers in Middlesex County, MA who travel to a workplace spend an average of 29.9 minutes each way, 3% above the Massachusetts average of 29.1. For someone who commutes five days a week, that is 5.0 hours of round-trip travel every week, a cost the budget does not price. 24.7% of workers in Middlesex County, MA work from home, compared with 15.1% nationally, which removes the commute for them.
Can Mental Health and Substance Abuse Social Workers afford to live in Middlesex County, MA?
The 30% rent guideline
A common rule of thumb says rent should stay under 30% of gross income. For a gross salary of $63,830 that ceiling is $1,596 a month. The one-bedroom Fair Market Rent of $2,382 is $786 over it, so rent breaks the guideline. Put as a wage, covering a one-bedroom at the 30% guideline takes $45.81 an hour; the median for Mental Health and Substance Abuse Social Workers is $30.69, which is 33% below that mark. Another way to see it: at $24.25 of take-home pay an hour, a one-bedroom takes about 22.7 working hours every week.
Splitting a two-bedroom
Sharing a two-bedroom at $2,884 a month means $1,442 each. Compared with renting a one-bedroom alone, that saves $11,280 a year. With a roommate, the yearly margin after the basics becomes $24,195.
How fast you can save
At $1,076 a month of margin, building a $10,000 emergency fund would take about 10 months. Setting aside half of the margin stretches the same goal to about 20 months. These figures ignore interest, raises and any spending beyond the four basics.
Frequently asked questions about Mental Health and Substance Abuse Social Workers pay in Middlesex County, MA
How much do Mental Health and Substance Abuse Social Workers make per hour in Middlesex County, MA?
The median is $30.69 per hour, based on $63,830 a year over 2,080 hours. Hourly pay runs from about $23.69 at the 10th percentile to $49.44 at the 90th percentile.
How much do Mental Health and Substance Abuse Social Workers take home after taxes in Middlesex County, MA?
After federal income tax, FICA and state income tax, the median salary of $63,830 becomes $50,444 a year. That is $4,204 a month, $1,940 every two weeks or $970 a week.
How much tax do Mental Health and Substance Abuse Social Workers pay in Middlesex County, MA?
Total taxes are $13,386 a year, an effective rate of 21.0%: $5,531 federal income tax, $4,883 FICA and $2,972 Massachusetts income tax.
Do Mental Health and Substance Abuse Social Workers earn more in Middlesex County, MA than elsewhere in Massachusetts?
Yes. The local median of $63,830 is +2.1% versus the Massachusetts average of $62,533, a difference of $1,297 a year.
Can Mental Health and Substance Abuse Social Workers afford a one-bedroom apartment in Middlesex County, MA?
A one-bedroom costs $2,382 a month against take-home pay of $4,204, which is 56.7% of take-home pay. That does not meet the 30%-of-gross guideline, which allows up to $1,596 a month.
What is the monthly budget margin for Mental Health and Substance Abuse Social Workers in Middlesex County, MA?
About $1,076 a month ($12,915 a year) remains after a one-bedroom apartment, food, home energy and gasoline, which together cost $37,529 a year.
What hourly wage covers a one-bedroom in Middlesex County, MA at the 30% guideline?
$45.81 an hour for a full-time schedule, calculated as the $28,584 annual rent divided by 0.30 and by 2,080 hours. The median for Mental Health and Substance Abuse Social Workers is $30.69.
How we calculated these numbers
Wages are May 2025 medians from the Bureau of Labor Statistics Occupational Employment and Wage Statistics survey for the Boston-Cambridge-Newton, MA-NH 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 Massachusetts 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.