U.S. Federal Government (non-Defense) / Department of Interior / Zoology

Job-title file

Zoology at Department of Interior, U.S. Federal Government

Carry out the duties of this position in support of the agency's public mission.

10 employees hold this title in Department of Interior. Median total compensation for the role is $146,751, above the department median of $85,447.

Employees: 10
Total payroll: $1.5M
Role median: $146,751
Agency median: $85,447
Comparison: Above

What the records show

Role pay distribution

Pay distribution for this role

$90,753$194,323+

Hover a bar for its range; click to filter the list below.

How total compensation varies among the 10 people in this role. Even for one job title, pay differs with seniority, step, overtime, and tenure. Each bar is a pay range; the far-right bar collects the highest earners.

Compare departments

This role across U.S. Federal Government (non-Defense)

Zoology is held in 5 U.S. Federal Government (non-Defense) departments. In Department of Interior, the median of $146,751 ranks #3 of 5.

Highest-paying departments for this role

Department of Commerce

$188,759 · 12

Smithsonian Institution

$186,650 · 16

Department of Agriculture

$142,760 · 5

Department of Health and Human Services

$94,568 · 2

Median total compensation for the Zoology role in other U.S. Federal Government (non-Defense)departments (highest first). Each bar links to that department’s page for this role.

Same department

Other job titles in Department of Interior

Accounting 434
Administrative Officer 783
Archeology 719
Auditing 339
Biological Science Technician 2,979
Budget Analysis 1,213
Civil Engineering 1,288
Contracting 1,164
Custodial Working 526
Dispatching 486
Ecology 660
Education and Training Technician 874
Education and Vocational Training 879
Engineering Equipment Operating 840
Engineering Technical 514
Environmental Protection Specialist 489
Equipment Facilities, and Services 287
Facility Operations Services 684
Financial Administration and Program 905
Financial Clerical and Assistance 1,533
Fish and Wildlife Administration 331
Fish Biology 921
Forestry 306
Forestry Technician 1,480
General Attorney 588
General Business and Industry 968
General Natural Resources Management and Biological Sciences 5,065
General Physical Science 1,130
Geography 443
Geology 859
Geophysics 326
Grants Management 433
Guide 1,197
Human Resources Assistance 345
Human Resources Management 1,315
Hydrologic Technician 1,652
Hydrology 1,314
Industrial Equipment Mechanic 272
Information Technology Management 2,357
Laboring 988
Maintenance Mechanic 4,669
Management and Program Analysis 2,063
Miscellaneous Administration and Program 3,662
Miscellaneous Clerk and Assistant 2,628
Motor Vehicle Operating 408
Outdoor Recreation Planning 483
Park Ranger 6,562
Petroleum Engineering 330
Program Management 804
Public Affairs 514
Rangeland Management 300
Realty 940
Recreation Aid and Assistant 268
Safety and Occupational Health Management 347
Secretary 365
Training Instruction 301
Utility Systems Repairing-Operating 300
Wildland Fire Management 4,392
Wildlife Biology 880
Wildlife Refuge Management 523

Record list

Employees with this title

Page 1

Erin Muths

Zoology/Department of Interior

2026 total comp

$197,200

Sub-department: Geological Survey
Base pay: $197,200
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $197,200
Pay grade: 15
Work city: Fort Collins
Work state: Colorado
Middle name: L.

Source-specific fields

Adjusted Basic Pay (incl. locality): $197,200
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $151,662
Duty Station Code: 080860069
Duty Station State: CO
Length of Service (Years): 30
Occupation Code (OPM): 0410

Erin Muths is a Zoology at Department of Interior based in Fort Collins, Colorado. 2026 total compensation came to $197,200. They are classified at grade 15.

Robert Chesser

Zoology/Department of Interior

2024 total comp

$181,216

Sub-department: Geological Survey
Base pay: $181,216
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $181,216
Pay grade: 14
Work city: Laurel
Work state: Maryland
Middle name: T.

Source-specific fields

Adjusted Basic Pay (incl. locality): $181,216
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $135,987
Duty Station Code: 240900033
Duty Station State: MD
Length of Service (Years): 19
Occupation Code (OPM): 0410

Robert Chesser works as a Zoology for Department of Interior based in Laurel, Maryland. Robert earned $181,216 in 2024. Their pay grade is 14.

Neal Woodman

Zoology/Department of Interior

2025 total comp

$170,985

Sub-department: Geological Survey
Base pay: $170,985
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $170,985
Pay grade: 14
Work city: Laurel
Work state: Maryland

Source-specific fields

Adjusted Basic Pay (incl. locality): $170,985
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $127,658
Duty Station Code: 240900033
Duty Station State: MD
Length of Service (Years): 24
Occupation Code (OPM): 0410

Neal Woodman holds the role of Zoology at Department of Interior based in Laurel, Maryland. In 2025, their total compensation was $170,985. Their pay grade is 14.

Adam Sepulveda

Zoology/Department of Interior

2026 total comp

$157,809

Sub-department: Geological Survey
Base pay: $157,809
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $157,809
Pay grade: 15
Work city: Bozeman
Work state: Montana
Middle name: Joel

Source-specific fields

Adjusted Basic Pay (incl. locality): $157,809
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $134,810
Duty Station Code: 300130031
Duty Station State: MT
Length of Service (Years): 15
Occupation Code (OPM): 0410

Adam Sepulveda holds the role of Zoology at Department of Interior based in Bozeman, Montana. In 2026, their total compensation was $157,809. Their pay grade is 15.

Blake Hossack

Zoology/Department of Interior

2026 total comp

$150,935

Sub-department: Geological Survey
Base pay: $150,935
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $150,935
Pay grade: 14
Work city: Missoula
Work state: Montana
Middle name: R

Source-specific fields

Adjusted Basic Pay (incl. locality): $150,935
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $128,938
Duty Station Code: 300830063
Duty Station State: MT
Length of Service (Years): 25
Occupation Code (OPM): 0410

At Department of Interior, Blake Hossack serves as a Zoology based in Missoula, Montana. Their 2026 pay totaled $150,935. They are classified at grade 14.

Rebecca Cole

Zoology/Department of Interior

2024 total comp

$142,566

Sub-department: Geological Survey
Base pay: $142,566
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $142,566
Pay grade: 14
Work city: Madison
Work state: Wisconsin
Middle name: A.

Source-specific fields

Adjusted Basic Pay (incl. locality): $142,566
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $122,039
Duty Station Code: 552780025
Duty Station State: WI
Length of Service (Years): 31
Occupation Code (OPM): 0410

Rebecca Cole is a Zoology at Department of Interior based in Madison, Wisconsin. 2024 total compensation came to $142,566. They are classified at grade 14.

George Esslinger

Zoology/Department of Interior

2026 total comp

$128,197

Sub-department: Geological Survey
Base pay: $128,197
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $128,197
Pay grade: 12
Work city: Anchorage
Work state: Alaska
Middle name: G.

Source-specific fields

Adjusted Basic Pay (incl. locality): $128,197
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $96,855
Duty Station Code: 020130020
Duty Station State: AK
Length of Service (Years): 34
Occupation Code (OPM): 0410

George Esslinger is a Zoology at Department of Interior based in Anchorage, Alaska. 2026 total compensation came to $128,197. They are classified at grade 12.

Timothy Bargar

Zoology/Department of Interior

2025 total comp

$126,461

Sub-department: Geological Survey
Base pay: $126,461
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $126,461
Pay grade: 13
Work city: Gainesville
Work state: Florida
Middle name: A.

Source-specific fields

Adjusted Basic Pay (incl. locality): $126,461
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $108,031
Duty Station Code: 121130001
Duty Station State: FL
Length of Service (Years): 24
Occupation Code (OPM): 0410

Timothy Bargar works as a Zoology for Department of Interior based in Gainesville, Florida. Timothy earned $126,461 in 2025. Their pay grade is 13.

Charles Drost

Zoology/Department of Interior

2026 total comp

$116,362

Sub-department: Geological Survey
Base pay: $116,362
Overtime: $0
Other pay: $0
Benefits: $0
Total compensation: $116,362
Pay grade: 12
Work city: Flagstaff
Work state: Arizona
Middle name: A.

Source-specific fields

Adjusted Basic Pay (incl. locality): $116,362
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN08
Basic Pay (before locality): $99,404
Duty Station Code: 040170005
Duty Station State: AZ
Length of Service (Years): 40
Occupation Code (OPM): 0410

Charles Drost holds the role of Zoology at Department of Interior based in Flagstaff, Arizona. In 2026, their total compensation was $116,362. Their pay grade is 12.

Timothy Clark

Zoology/Department of Interior

2024 total comp

$90,753

Sub-department: National Park Service
Base pay: $89,481
Overtime: $0
Other pay: $1,272
Benefits: $0
Total compensation: $90,753
Pay grade: 11
Work city: Agana
Work state: No Data Reported
Middle name: B.

Source-specific fields

Adjusted Basic Pay (incl. locality): $89,481
Agency Code (OPM): IN
Agency Sub-element Code (OPM): IN10
Basic Pay (before locality): $76,597
Duty Station Code: GQ0100000
Duty Station State: NDR
Length of Service (Years): 16
Occupation Code (OPM): 0410

Timothy Clark holds the role of Zoology at Department of Interior based in Agana, No Data Reported. In 2024, their total compensation was $90,753. Their pay grade is 11.