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Average Environmental Scientist Salary in Sierra Leone for 2026

An environmental scientist in Sierra Leone earns about 102,599,200 SLL a year. That's 50% above the national average of 68,398,200 SLL.

Pay ranges widely from country to country and from role to role. The lowest reported salaries in Sierra Leone sit around 50,281,100 SLL a year, while the very top stretches to 159,601,400 SLL. Everything on this page is in Sierra Leonean leone (SLL, symbol Le), which lets you compare numbers like-for-like without worrying about exchange rates.

The numbers here are pulled together from official government wage data, large independent salary surveys, and aggregated worker-reported pay. Most reported salaries include the benefits that are common in Sierra Leone, such as housing or transport allowances, which is worth keeping in mind if you're comparing against a country where those are usually paid on top.


How much does an environmental scientist make in Sierra Leone?

Average salary
102,599,200 SLL
8,549,933 SLL per month
Lowest reported
50,281,100 SLL
4,190,091 SLL per month
Highest reported
159,601,400 SLL
13,300,116 SLL per month

A typical environmental scientist working in Sierra Leone brings home around 8,549,933 SLL a month before tax. Entry-level pay starts near 50,281,100 SLL, and the top of the ladder reaches roughly 159,601,400 SLL for the most experienced and specialised people in the role.

The wide gap between low end and top end reflects how much pay can vary inside the same job title. A junior environmental scientist working at a small local employer earns very different money from a senior at a multinational. Skills, employer, city and years in the seat all push the number around.


How environmental scientist pay ranges in Sierra Leone

A good way to think about salary in Sierra Leone is to look at the distribution rather than the headline average. Half of all environmental scientists in Sierra Leone earn less than 104,639,900 SLL a year, and the other half earn more. That middle number is the median, and it is usually more useful than the average for answering "is my pay normal here".

Looking at the quartiles fills in the picture. A quarter of earners take home less than 69,721,100 SLL (the 25th percentile), and a quarter clear 135,600,300 SLL (the 75th percentile). The middle 50% of environmental scientists sit somewhere inside that band, which is where the typical reader of this page probably lives.

The very lowest reported salaries sit around 50,281,100 SLL. The highest stretch to 159,601,400 SLL, though only a small fraction of earners ever reach that level. If you are deciding whether your own offer or current pay is reasonable, work out which of those four bands you would fall into and use that as your reference point.

50,281,100
Low
104,639,900
Median
159,601,400
High
69,721,100
25th
135,600,300
75th
The middle 50% sit between the 25th and 75th percentile Tails are the lowest and highest reported All figures in SLL

Environmental scientist pay by experience in Sierra Leone

Years of experience is the single biggest lever on pay for an environmental scientist in Sierra Leone, ahead of education and almost any other single factor. The longer you have been in the role, the more your employer can trust you to handle complexity, mentor others and act independently, all of which command higher pay. The chart below shows how the typical environmental scientist salary changes as you move through the career ladder.

  • 0-2 Years
    59,640,200 SLL
  • 2-5 Years
    +29% from previous
    76,678,200 SLL
  • 5-10 Years
    +38% from previous
    105,719,800 SLL
  • 10-15 Years
    +24% from previous
    130,799,600 SLL
  • 15-20 Years
    +7% from previous
    140,401,100 SLL
  • 20+ Years
    +7% from previous
    149,999,200 SLL

The single largest jump on the ladder is from 2 - 5 Years to 5 - 10 Years, where pay rises by about 38%. That is the point at which a environmental scientist typically goes from "competent in the role" to "the person other people in the team learn from", and the market pays well for that step.


Environmental scientist pay by education in Sierra Leone

Education sits alongside experience as one of the biggest factors driving environmental scientist pay in Sierra Leone. Higher qualifications consistently pull higher salaries, but the size of the gap tends to be smallest at junior levels and widens as people move up. Two people in the same role with the same years of experience but different degrees can end up earning very different money once they reach mid-career.

Below is the average environmental scientist salary in Sierra Leone broken down by the highest level of education a worker has completed.

  • Bachelor's Degree
    70,079,900 SLL
  • Master's Degree
    +37% from previous
    96,358,400 SLL
  • PhD
    +64% from previous
    158,398,200 SLL

Environmental scientist gender pay gap in Sierra Leone

The gender pay gap is a stubborn feature of almost every labour market, and Sierra Leone is no exception. Male environmental scientists in Sierra Leone earn an average of 107,521,300 SLL a year, while female environmental scientists earn around 94,918,700 SLL. That works out to a 13% gap in favour of men, even when comparing people doing the same work.

A pay gap of this size has a real long-term cost. Over a typical thirty-year career it can add up to several years of pay, and it compounds through pensions, retirement contributions and bonus-linked stock. Some of the gap is explained by women being more likely to work part-time, take career breaks, or be steered toward lower-paying specialisations. Some of it is straightforward unequal pay for the same job, which is harder to defend.

Environmental Scientist gender pay gap

12%

Men earn this much more than women on average in Sierra Leone.

Men 107,521,300 SLL
Women 94,918,700 SLL

Pay raises for an environmental scientist in Sierra Leone

Most countries hand out at least some kind of pay raise every year, typically when an employee's contract is reviewed or as a cost-of-living adjustment to keep wages roughly in step with inflation. The rhythm and size of those raises varies hugely between industries.

A typical worker doing this role in Sierra Leone sees a raise of about 7% every 31 months, which works out to roughly 3% on an annual basis. That figure is the typical underlying rate; in years where inflation runs high you can usually expect a bit more, and in flat-economy years a bit less.

Across all jobs in Sierra Leone, the national average raise is around 4% every 29 months.

By industry

Industries with the highest pay raises in Sierra Leone:

  • Banking
  • Energy
  • Information Technology
  • Healthcare
  • Travel
  • Construction
  • Education

By experience level

Experienced workers tend to see larger raises. Retaining a senior is cheaper than replacing them, so employers fight harder for them.

  • Junior Level
    3% - 5%
  • Mid-Career
  • Senior Level
  • Top Management

Environmental scientist bonus rates in Sierra Leone

Bonuses are the other half of total compensation, and they vary a lot between jobs and industries. Some roles are paid almost entirely in base salary; others lean heavily on bonus structures tied to revenue, project completion or company performance. Whether a job pays a bonus, how big it is, and how often it lands all factor into whether the headline salary is actually a good offer.

39%

39% of environmental scientists in Sierra Leone reported a bonus of some kind in the past twelve months. That makes an environmental scientist a low-bonus role overall, which is useful context when you're weighing up a job offer where the base is below market.

Among those who did receive a bonus, the size of the payment varied substantially. Reported bonuses ranged from 3% to 6% of base salary. The remaining 61% of environmental scientists reported no bonus at all over the same period.

Which careers pay bonuses in Sierra Leone

Revenue-facing roles tend to pay the biggest bonuses. Operational and support roles tend toward smaller, more predictable ones.

  • Finance
  • Architecture
  • Sales
  • Business Development
  • Marketing / Advertising
  • Information Technology
  • Healthcare
  • Insurance
  • Customer Service
  • Human Resources
  • Construction
  • Transport
  • Hospitality

Environmental scientist: public vs private sector pay

Public-sector pay in Sierra Leone is about 14% more than private-sector pay for similar work. The private sector typically offers stronger upside and bigger bonuses; the public sector typically offers better benefits and stability.

Public vs private pay gap

12%

Public-sector workers earn this much more than private-sector workers in Sierra Leone on average.

Public sector 71,878,800 SLL
Private sector 63,000,700 SLL

Environmental scientist salary by city in Sierra Leone

Environmental scientist pay is not even across Sierra Leone. The chart below shows the highest-paying cities in the dataset, followed by the full location table.

  • Freetown
LocationTypeAverageMedianRange
FreetownCity110,040,100 SLL112,201,700 SLL53,879,800-171,598,600 SLL


Environmental Scientist in Sierra Leone: FAQs

  • How much does an environmental scientist make per month in Sierra Leone?

    An environmental scientist in Sierra Leone earns about 8,549,933 SLL a month before tax, based on an annual average of 102,599,200 SLL.

  • What's the salary range for an environmental scientist in Sierra Leone?

    Entry-level environmental scientists in Sierra Leone start near 50,281,100 SLL. Top-end pay reaches around 159,601,400 SLL. The middle 50% of earners sit between 69,721,100 and 135,600,300 SLL.

  • Is the median environmental scientist salary in Sierra Leone higher or lower than the average?

    The median is 104,639,900 SLL, higher than the average of 102,599,200 SLL. Half of environmental scientists in Sierra Leone earn below the median, half earn above it.

  • What's the gender pay gap for environmental scientists in Sierra Leone?

    Men working as an environmental scientist in Sierra Leone earn around 13% more than women on average (107,521,300 vs 94,918,700 SLL a year).

  • Do environmental scientists in Sierra Leone get bonuses?

    About 39% of environmental scientists in Sierra Leone reported a bonus in the past 12 months. Reported bonuses ranged from 3% to 6% of base salary.

  • Do environmental scientists earn more in the public or private sector in Sierra Leone?

    In Sierra Leone, the public sector pays an environmental scientist about 14% more on average. Public-sector pay tends to be steadier; private-sector pay tends to offer bigger upside.

  • How often do environmental scientists in Sierra Leone get a pay raise?

    An environmental scientist in Sierra Leone sees a raise of around 7% every 31 months, equivalent to roughly 3% a year.