Protective Service

Background Investigator Salary (2026), outlook and how to become one

Conducts interviews and checks records to determine whether people are suitable for security clearances and sensitive government jobs.

Median pay
$51,220
Growth to 2035
+5.5%
Openings a year
3,200
Typical entry
Bachelor's

Conducts interviews and checks records to determine whether people are suitable for security clearances and sensitive government jobs. BLS does not publish separate figures for private detectives and investigators; it counts them within private detective and investigator (SOC 33-9021), whose median pay is $51,220 a year (BLS OEWS, May 2025). Typical entry-level education: Bachelor's degree.

  • SOC 33-9021
  • Protective Service
  • Last updated October 9, 2026

At a glance

Background Investigator in four numbers

Median pay
$51,220a year, or $24.62/hr
Lowest 10% $37KTop 10% $98K

US median, all jobs: $50,980

BLS OEWS, May 2025
Projected growth
+5.5%Faster than average
This career
+5.5%
All jobs
+3.5%
Projected employment change, 2025–2035
ItemValue
This career+5.5%
All jobs+3.5%
BLS EP, 2025–2035
Openings a year
3,20039,500 jobs today
  • Jobs in 202539.5K
  • Projected 203541.7K
Employment, 2025–2035
ItemValue
Jobs in 202539.5K
Projected 203541.7K
BLS EP, 2025–2035
Typical education
Bachelor'sneeded to enter
  • High school25.1%
  • Certificate4.3%
  • Some college12.1%
  • Associate's16.4%
  • Bachelor's37.7%
  • Post-bacc certificate4.5%
Highest education held by private detectives and investigators
SegmentValue
High school25.1%
Certificate4.3%
Some college12.1%
Associate's16.4%
Bachelor's37.7%
Post-bacc certificate4.5%
BLS EP, 2025–2035; mix: O*NET

Also advertised as: Federal Background Investigator, Security Clearance Investigator, Personnel Security Investigator, Field Investigator, Background Investigations.

Pay

How much do Private Detectives and Investigators make?

Annual pay, lowest-paid to highest-paid

Every background investigator in the US, by percentile of annual wage

Median

$51,220

Middle half earn $40,700 to $73,990

10th
$36,740
25th
$40,700
75th
$73,990
90th
$97,630

All US occupations: $50,980

Background Investigator annual wages
PercentileValue
10th$36,740
25th$40,700
Median$51,220
75th$73,990
90th$97,630
All US occupations$50,980

Source: BLS OEWS, May 2025

Median annual wage
$51,220
Median hourly wage
$24.62/hr
Mean annual wage
$60,150
People employed
35,580

Versus all US occupations

At $51,220, the median for Private Detectives and Investigators sits in line with the $50,980 median across all US occupations.

Versus protective service occupations

Inside the Protective Service group, where the middle occupation pays $74,060, this is 31% below the group median.

Pay range

The top 10% earn $97,630 or more while the bottom 10% earn $36,740, a gap of 2.7×. That is a typical spread for a US occupation.

Rank in the bank

This median pays more than 24% of the 1,741 occupations in the NueCareer career bank.

Highest-paying state

Oregon pays the most at $76,480, and still leads at $73,993 once local prices are taken into account.

Pay by state

Which states pay Private Detectives and Investigators the most?

State medians come from the same OEWS release as the national figures. The cost-of-living column divides each state median by that state's BEA Regional Price Parity, restating pay in national-average dollars so a high-cost state and a low-cost one can be compared directly.

Top 10 states by median annual wage for Private Detectives and Investigators
StateMedianCOL-adjustedEmployed
1Oregon$76,480$73,993610
2Connecticut$75,010$72,396400
3District of Columbia$72,720$66,169N/A
4Vermont$67,910$69,32690
5New Hampshire$65,370$62,756280
6Washington$64,080$59,881750
7California$61,250$55,3204,190
8Arizona$61,030$60,620790
9Illinois$60,210$60,2351,300
10New York$59,140$54,7991,300
See all 50 states, sortable, with cost-of-living adjustments

Job outlook

Is Background Investigator a growing career?

Projected change in jobs

Employment change over 2025–2035, against every US occupation

Private Detectives and Investigators
+5.5%
All US occupations
+3.5%

Faster than average. +5.5% projected growth vs 3.5% for all occupations.

Projected employment change, 2025–2035
ItemValue
Private Detectives and Investigators+5.5%
All US occupations+3.5%

Source: BLS EP, 2025–2035

Faster than average

BLS projects employment of Private Detectives and Investigators to change 5.5% over 2025–2035, against 3.5% projected for all occupations. That is 2,200 more jobs.

Annual openings

About 3,200 openings are projected each year, 8.1% of the 39,500 jobs that existed in 2025. Most come from workers leaving the occupation, not from growth alone.

Getting in

How to become a Background Investigator

Many federal and contractor roles accept a bachelor's degree in place of experience at entry level, and backgrounds in law enforcement, military service, criminal justice or political science are common. Investigators must obtain and keep a security clearance themselves.

New investigators complete federal investigator training, such as the Federal Background Investigator Training Program, and must pass written and practical tests before working cases alone. Contractor firms hire throughout the year and often require DCSA credentials or the ability to obtain them, which makes this an accessible door into federal security work.

  1. 1

    Typical entry-level education

    Bachelor's degree

  2. 2

    Work experience in a related occupation

    Less than 5 years

  3. 3

    Typical on-the-job training

    Moderate-term on-the-job training

  4. 4

    Preparation needed (O*NET job zone)

    Some preparation

BLS Employment Projections, 2025–2035; job zone from O*NET 31.0 Database.

What education people in the job have

O*NET incumbent survey: the highest level of education reported by people already working as private detectives and investigators.

  • Bachelor's Degree37.7%
  • High School Diploma or the equivalent (such as a GED)25.1%
  • Associate's Degree or other 2-year degree16.4%
  • Some College Courses12.1%
  • Post-Baccalaureate Certificate4.5%
Highest education held by private detectives and investigators
ItemValue
Bachelor's Degree37.7%
High School Diploma or the equivalent (such as a GED)25.1%
Associate's Degree or other 2-year degree16.4%
Some College Courses12.1%
Post-Baccalaureate Certificate4.5%

Source: O*NET 31.0 Database

The work

What does a Background Investigator do?

Background investigators gather the facts that clearance decisions rest on. For each case, they interview the applicant in depth, then interview supervisors, coworkers, neighbors, references and sometimes former spouses. They check employment, education, criminal, court, financial and residence records.

Investigators look for issues such as foreign contacts, debt, drug or alcohol problems, or dishonesty, and follow up on anything that does not add up. They do not decide who gets a clearance; they write detailed, neutral reports for adjudicators. Most work is for the Defense Counterintelligence and Security Agency, which handles the bulk of federal background investigations, either directly or through contractors.

Day-to-day tasks

  1. Conduct in-depth interviews with clearance applicants
  2. Interview references, supervisors, coworkers and neighbors
  3. Check employment, education, court and police records
  4. Review credit and financial information for issues
  5. Follow up on discrepancies and develop additional sources
  6. Write detailed, objective investigative reports
  7. Manage a caseload to meet completion deadlines

Typical tasks, researched by NueCareer from the sources below.

Working conditions and hours

Investigators usually cover a territory, driving to interviews at homes, offices, schools and courthouses, and writing reports from home or a field office. Some assignments involve temporary travel. The work is independent, deadline driven and heavy on writing, with quotas for completed cases.

Where the work happens

  • Indoors, climate-controlled

    NeverEvery day
  • Outdoors in all weather

    NeverEvery day

Physical demands

  • Sitting

    NeverAlmost all the time

    Seated for more than half the working day.

  • Standing

    NeverAlmost all the time
  • Bending or twisting

    NeverAlmost all the time

Working with people

  • Contact with other people

    NoneConstant
  • Face-to-face discussions

    NeverEvery day
  • Dealing with the public

    Not importantExtremely important

    Dealing with customers or the public is very important.

Pressure and stakes

  • Strict deadlines

    NeverEvery day

    Meeting strict deadlines at least weekly.

  • Conflict situations

    NeverEvery day
  • Cost of a mistake

    Not seriousExtremely serious

Autonomy

  • Freedom to decide

    NoneA lot

    A lot of freedom to make decisions without checking first.

Conditions: O*NET Work Context survey. Each item has its own scale, so each dot is read against the two answers that end its own line.

Core skills

O*NET importance, 1 to 5

  • Active Listening4.1
  • Speaking4.0
  • Reading Comprehension3.9
  • Critical Thinking3.9
  • Writing3.6
  • Active Learning3.4
  • Monitoring3.4
  • Learning Strategies2.5
Core skills for Private Detectives and Investigators
ItemValue
Active Listening4.1
Speaking4.0
Reading Comprehension3.9
Critical Thinking3.9
Writing3.6
Active Learning3.4
Monitoring3.4
Learning Strategies2.5

Source: O*NET 31.0 Database

Transferable skills

O*NET importance, 1 to 5

  • Complex Problem Solving3.8
  • Social Perceptiveness3.5
  • Judgment and Decision Making3.4
  • Coordination3.0
  • Service Orientation3.0
  • Time Management3.0
  • Persuasion2.9
  • Negotiation2.9
Transferable skills for Private Detectives and Investigators
ItemValue
Complex Problem Solving3.8
Social Perceptiveness3.5
Judgment and Decision Making3.4
Coordination3.0
Service Orientation3.0
Time Management3.0
Persuasion2.9
Negotiation2.9

Source: O*NET 31.0 Database

Tools and software

  • Data base user interface and query software · in demand
  • Electronic mail software · in demand
  • Office suite software · in demand
  • Operating system software · in demand
  • Presentation software · in demand
  • Spreadsheet software · in demand
  • Web page creation and editing software · in demand
  • Word processing software · in demand
  • Graphics or photo imaging software
  • Information retrieval or search software
  • Internet browser software

“In demand” marks an O*NET Employer-Based Hot Technology, software named in real job postings for this occupation.

Personality fit

What personality type suits a Background Investigator?

Interest profile

NueCareer estimate (Holland code CSE) built on O*NET's Private Detective and Investigator profile, scored 1 to 7

Background Investigator · Realistic: 2Background Investigator · Investigative: 4Background Investigator · Artistic: 1Background Investigator · Social: 4Background Investigator · Enterprising: 4Background Investigator · Conventional: 6
Background Investigator interest profile
AxisBackground Investigator
Realistic2
Investigative4
Artistic1
Social4
Enterprising4
Conventional6

Source: O*NET 31.0 Database

What the work is built around

Day to day this is work built around organising, following procedures and working precisely with data, combined with leading, persuading, selling and making decisions.

  • Conventional5.6
  • Enterprising4.3
  • Investigative3.9
  • Social3.6
  • Realistic2.4
  • Artistic1.4

Closest MBTI types

NueCareer fit scores: cosine similarity between each MBTI type's interest vector and this occupation's O*NET interest profile. Not a BLS or O*NET figure; the method is documented on our methodology page.

Questions

Background Investigator: frequently asked questions

How much do Private Detectives and Investigators make?

BLS does not publish a separate wage for private detectives and investigators. It counts them within private detective and investigator, whose median pay is $51,220 a year (BLS OEWS, May 2025). The middle half of that occupation earn between $40,700 and $73,990, and the top 10% earn $97,630 or more.

Do you need a degree to become a Background Investigator?

Yes. BLS reports a bachelor's degree as the typical entry-level education for Private Detectives and Investigators, and O*NET rates the preparation needed as some preparation. Employers typically expect less than 5 years of related work experience first. BLS also lists moderate-term on-the-job training as typical on-the-job training. In O*NET's survey of people already doing the job, 37.7% hold bachelor's degree.

Is Background Investigator a growing career?

Yes. Employment is projected to grow 5.5% over 2025–2035, faster than the 3.5% average for all occupations (BLS EP, 2025–2035). BLS still projects about 3,200 openings a year, mostly from workers retiring or moving to other work.

What does a Background Investigator do?

Background investigators gather the facts that clearance decisions rest on. A typical task: conduct in-depth interviews with clearance applicants. Employers most often ask for Data base user interface and query software, Electronic mail software, Office suite software.

Which states pay Private Detectives and Investigators the most?

The highest state medians for Private Detectives and Investigators are Oregon ($76,480), Connecticut ($75,010), District of Columbia ($72,720) (BLS OEWS, May 2025).

What personality type suits a Background Investigator?

O*NET scores Private Detectives and Investigators highest on the Conventional, Enterprising and Investigative interest areas, so the work mixes organising, following procedures and working precisely with data with leading, persuading, selling and making decisions. On NueCareer's MBTI-to-interest mapping that lines up most closely with ESTJ personalities. Personality is a fit signal, not a gate. The free NueCareer quiz scores your own profile against all 1,731 careers in the bank.

Research sources for this career