Civic Intelligence

Samuel L. Koth, Dds PC

Plan context: Rock Valley Family Dentistry Retirement Plan & Trust

EIN 45-5117087 • Rock Valley, IA • 16 filings • 2 plans

1302 10th St.Rock Valley, IA 51247
Current Snapshot

Latest Year

2025

2025 Participants

17

2025 Assets

$2,043,208

2025 Contributions

$166,198

Historical Graphs

Total Assets Over Time

Aggregate end-of-year assets by filing year, excluding zero-asset years

$2,043,208$1,021,604$0201120182025YearValue
$2,043,208Latest year 2025

Participants Over Time

Largest reported end-of-year plan headcount by filing year, used to avoid double-counting participants across overlapping plans

1790201120182025YearValue
17Latest year 2025

Company Timeline

Year summaries and individual filings are combined here so you can stay in one place while moving across years and plan filings.

Year / FilingFilingsParticipantsAssetsContributionsContrib./Participant
2025117$2,043,208$166,198$9,776iApproximate average salary by contribution assumption: employee only about $244,409 at 4% or $162,939 at 6%; with 50% employer match about $162,939 at 4% or $108,626 at 6%; with 100% employer match about $122,204 at 4% or $81,470 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-17$2,043,208$166,198$9,776iApproximate average salary by contribution assumption: employee only about $244,409 at 4% or $162,939 at 6%; with 50% employer match about $162,939 at 4% or $108,626 at 6%; with 100% employer match about $122,204 at 4% or $81,470 at 6%.
2024113$1,533,966$104,670$8,052iApproximate average salary by contribution assumption: employee only about $201,288 at 4% or $134,192 at 6%; with 50% employer match about $134,192 at 4% or $89,462 at 6%; with 100% employer match about $100,644 at 4% or $67,096 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-13$1,533,966$104,670$8,052iApproximate average salary by contribution assumption: employee only about $201,288 at 4% or $134,192 at 6%; with 50% employer match about $134,192 at 4% or $89,462 at 6%; with 100% employer match about $100,644 at 4% or $67,096 at 6%.
2023115$1,302,268$131,182$8,745iApproximate average salary by contribution assumption: employee only about $218,637 at 4% or $145,758 at 6%; with 50% employer match about $145,758 at 4% or $97,172 at 6%; with 100% employer match about $109,318 at 4% or $72,879 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-15$1,302,268$131,182$8,745iApproximate average salary by contribution assumption: employee only about $218,637 at 4% or $145,758 at 6%; with 50% employer match about $145,758 at 4% or $97,172 at 6%; with 100% employer match about $109,318 at 4% or $72,879 at 6%.
2022114$1,035,160$111,861$7,990iApproximate average salary by contribution assumption: employee only about $199,752 at 4% or $133,168 at 6%; with 50% employer match about $133,168 at 4% or $88,779 at 6%; with 100% employer match about $99,876 at 4% or $66,584 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-14$1,035,160$111,861$7,990iApproximate average salary by contribution assumption: employee only about $199,752 at 4% or $133,168 at 6%; with 50% employer match about $133,168 at 4% or $88,779 at 6%; with 100% employer match about $99,876 at 4% or $66,584 at 6%.
2021114$1,129,575$101,652$7,261iApproximate average salary by contribution assumption: employee only about $181,521 at 4% or $121,014 at 6%; with 50% employer match about $121,014 at 4% or $80,676 at 6%; with 100% employer match about $90,761 at 4% or $60,507 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-14$1,129,575$101,652$7,261iApproximate average salary by contribution assumption: employee only about $181,521 at 4% or $121,014 at 6%; with 50% employer match about $121,014 at 4% or $80,676 at 6%; with 100% employer match about $90,761 at 4% or $60,507 at 6%.
2020114$891,411$86,384$6,170iApproximate average salary by contribution assumption: employee only about $154,257 at 4% or $102,838 at 6%; with 50% employer match about $102,838 at 4% or $68,559 at 6%; with 100% employer match about $77,129 at 4% or $51,419 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-14$891,411$86,384$6,170iApproximate average salary by contribution assumption: employee only about $154,257 at 4% or $102,838 at 6%; with 50% employer match about $102,838 at 4% or $68,559 at 6%; with 100% employer match about $77,129 at 4% or $51,419 at 6%.
2019111$692,554$76,942$6,995iApproximate average salary by contribution assumption: employee only about $174,868 at 4% or $116,579 at 6%; with 50% employer match about $116,579 at 4% or $77,719 at 6%; with 100% employer match about $87,434 at 4% or $58,289 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-11$692,554$76,942$6,995iApproximate average salary by contribution assumption: employee only about $174,868 at 4% or $116,579 at 6%; with 50% employer match about $116,579 at 4% or $77,719 at 6%; with 100% employer match about $87,434 at 4% or $58,289 at 6%.
2018111$503,457$70,106$6,373iApproximate average salary by contribution assumption: employee only about $159,332 at 4% or $106,221 at 6%; with 50% employer match about $106,221 at 4% or $70,814 at 6%; with 100% employer match about $79,666 at 4% or $53,111 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-11$503,457$70,106$6,373iApproximate average salary by contribution assumption: employee only about $159,332 at 4% or $106,221 at 6%; with 50% employer match about $106,221 at 4% or $70,814 at 6%; with 100% employer match about $79,666 at 4% or $53,111 at 6%.
201715$469,863$63,785$12,757iApproximate average salary by contribution assumption: employee only about $318,925 at 4% or $212,617 at 6%; with 50% employer match about $212,617 at 4% or $141,744 at 6%; with 100% employer match about $159,463 at 4% or $106,308 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-5$469,863$63,785$12,757iApproximate average salary by contribution assumption: employee only about $318,925 at 4% or $212,617 at 6%; with 50% employer match about $212,617 at 4% or $141,744 at 6%; with 100% employer match about $159,463 at 4% or $106,308 at 6%.
2016110$370,955$74,477$7,448iApproximate average salary by contribution assumption: employee only about $186,193 at 4% or $124,128 at 6%; with 50% employer match about $124,128 at 4% or $82,752 at 6%; with 100% employer match about $93,096 at 4% or $62,064 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-10$370,955$74,477$7,448iApproximate average salary by contribution assumption: employee only about $186,193 at 4% or $124,128 at 6%; with 50% employer match about $124,128 at 4% or $82,752 at 6%; with 100% employer match about $93,096 at 4% or $62,064 at 6%.
2015110$286,656$97,087$9,709iApproximate average salary by contribution assumption: employee only about $242,718 at 4% or $161,812 at 6%; with 50% employer match about $161,812 at 4% or $107,874 at 6%; with 100% employer match about $121,359 at 4% or $80,906 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-10$286,656$97,087$9,709iApproximate average salary by contribution assumption: employee only about $242,718 at 4% or $161,812 at 6%; with 50% employer match about $161,812 at 4% or $107,874 at 6%; with 100% employer match about $121,359 at 4% or $80,906 at 6%.
2014110$198,519$101,531$10,153iApproximate average salary by contribution assumption: employee only about $253,828 at 4% or $169,218 at 6%; with 50% employer match about $169,218 at 4% or $112,812 at 6%; with 100% employer match about $126,914 at 4% or $84,609 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-10$198,519$101,531$10,153iApproximate average salary by contribution assumption: employee only about $253,828 at 4% or $169,218 at 6%; with 50% employer match about $169,218 at 4% or $112,812 at 6%; with 100% employer match about $126,914 at 4% or $84,609 at 6%.
2013210$94,077$91,033$9,103iApproximate average salary by contribution assumption: employee only about $227,582 at 4% or $151,722 at 6%; with 50% employer match about $151,722 at 4% or $101,148 at 6%; with 100% employer match about $113,791 at 4% or $75,861 at 6%.
Rock Valley Family Dentistry Retirement Plan & Trust-10$94,077$91,033$9,103iApproximate average salary by contribution assumption: employee only about $227,582 at 4% or $151,722 at 6%; with 50% employer match about $151,722 at 4% or $101,148 at 6%; with 100% employer match about $113,791 at 4% or $75,861 at 6%.
SAMUEL L. KOTH, DDS, PC PROFIT SHARING PLAN-0$0$0-
201217$735,428$0-
SAMUEL L. KOTH, DDS, PC PROFIT SHARING PLAN-7$735,428$0-
201117$806,313$10,379$1,483iApproximate average salary by contribution assumption: employee only about $37,068 at 4% or $24,712 at 6%; with 50% employer match about $24,712 at 4% or $16,475 at 6%; with 100% employer match about $18,534 at 4% or $12,356 at 6%.
SAMUEL L. KOTH, DDS, PC PROFIT SHARING PLAN-7$806,313$10,379$1,483iApproximate average salary by contribution assumption: employee only about $37,068 at 4% or $24,712 at 6%; with 50% employer match about $24,712 at 4% or $16,475 at 6%; with 100% employer match about $18,534 at 4% or $12,356 at 6%.