If a sitting South Dakota county commissioner is appointed to a vacant seat in the State Legislature, can the person hold both offices at the same time until the county commissioner term ends?
Plain-English summary
A SD county commissioner whose term ended December 31, 1994 was appointed to fill a vacant seat in the State Legislature mid-1994. He attended the special legislative session in July but planned no further legislative activity until the commissioner term ended. SDCL 7-7-5 had recently been amended to let county commissioners set their own salaries free of legislative restraint. The question to the AG was whether the amendment changed the analysis from the 1982 opinion (AGR 82-23) holding that the two offices were incompatible.
The 1994 AG said no, the amendment did not change anything. The offices remained incompatible and the dual-officeholding was a conflict.
The reasoning is short. S.D. Const. art. IX, § 1 grants the Legislature plenary power over local government. That means the Legislature establishes whether counties exist as governmental units, defines their structure, fixes commissioner terms, and historically set commissioner compensation. The 1994 statutory amendment letting commissioners set their own salaries did not pull the structural authority out of the Legislature's hands. The Legislature can revisit that delegation at any time. So a state representative who is also a county commissioner is voting in one capacity on questions that affect his own service in the other capacity. That structural overlap, not any specific vote on any specific bill, is what makes the offices incompatible.
The AG was direct about following the 1982 precedent: same question, same conclusion. AG Meierhenry had reached the same answer in AGR 82-23, and nothing in the intervening twelve years had undone the constitutional structure that drove that answer.
Currency note
This opinion was issued in 1994. Subsequent statutory amendments, court decisions, or later AG opinions may have changed the analysis. Treat this page as historical context, not current legal advice. Verify current law before relying on any specific rule, deadline, or remedy mentioned here. SD law on incompatible offices has evolved through later AG opinions and court decisions. The county commissioner salary framework has also been amended. The general principle (state legislative-county commissioner is structurally conflicted) has been a stable feature of SD law, but specific incumbents and edge cases should always be checked against current statute and current AG opinions before assuming the answer.
What the opinion meant at the time
For the specific commissioner caught in this situation in 1994, the opinion meant he had to choose. Holding both offices simultaneously was not permitted, regardless of his intent not to attend regular legislative sessions during the overlap.
For Governors and Senates making vacancy appointments to fill legislative seats, the opinion meant a county commissioner who had not yet vacated the local office could not be appointed without forcing the choice.
For county commissioners considering legislative candidacies, the opinion meant the candidacy itself was possible but accepting election or appointment required vacating the commissioner seat first.
For county boards and county clerks tracking commissioner eligibility, the opinion provided clear guidance: a member who accepted a legislative seat had effectively vacated the commissioner seat by accepting the incompatible office.
For voters trying to understand why a commissioner who joined the Legislature could not finish out his term, the opinion explained the constitutional reasoning rather than treating it as an ad-hoc political call.
Common questions
Q: What does "incompatible offices" mean?
A: A common-law doctrine (now reinforced by AG opinion and statute) holding that one person may not hold two offices when the duties of the two would create structural conflicts of interest. Accepting the second office is deemed to vacate the first.
Q: What is the source of the conflict here?
A: S.D. Const. art. IX, § 1 gives the Legislature plenary power over local government. A state legislator who is also a county commissioner would be voting in the state Legislature on questions that affect his own role as county commissioner.
Q: Did the 1994 amendment to SDCL 7-7-5 change the analysis?
A: No. Even though commissioners could now set their own salaries free of legislative control, the broader constitutional authority of the Legislature over counties remained. The structural conflict persisted.
Q: Could the commissioner just abstain from any county-related legislative votes?
A: The incompatibility doctrine is structural, not vote-specific. Even a perfectly abstaining legislator would still have the inherent conflict because of the Legislature's institutional authority over counties.
Q: What happens to the county commissioner seat if the person accepts the legislative seat?
A: Accepting the incompatible office is treated as a vacation of the prior office. The county board would then need to fill the vacancy through the usual process for replacement of a county commissioner.
Q: Is this rule unique to SD?
A: Most states have some form of incompatible-offices doctrine, though specifics vary. SD's version is anchored in the constitutional grant of legislative authority over counties.
Q: Does this rule apply to other dual-office combinations?
A: Each combination requires its own analysis. The 1994 AG opinion only addresses the state representative + county commissioner combination. Other pairs (e.g., city council + school board) may or may not be incompatible depending on the specific authority relationships.
Background and statutory framework
South Dakota inherited the common-law incompatible-offices doctrine and applies it through AG opinions and case law rather than a single comprehensive statute. The doctrine asks whether the duties or interests of two offices conflict structurally. If they do, one person cannot hold both, and accepting the second is treated as vacating the first.
The state-representative + county-commissioner pairing is a textbook case under SD constitutional structure. S.D. Const. art. IX, § 1 reads in pertinent part that the Legislature has full authority over local government. That authority is not a residual one-off; it is plenary and continuing. The Legislature decides whether counties exist, defines their structure, sets the terms of their officers, regulates their finances, and (historically) controlled their salaries.
The 1994 SDCL 7-7-5 amendment delegated salary-setting back to county commissioners themselves, but that delegation did not transfer constitutional authority. The Legislature could repeal the delegation at any time. So a state representative who is also a county commissioner remains subject to the structural conflict: he can vote in the legislative chamber on bills that re-impose salary caps, change commissioner term lengths, restructure county functions, or even abolish county governance entirely.
The doctrine is not about predicting that the dual-officeholder will actually act in bad faith. It is about preventing the structural setup that creates the conflict in the first place. Public confidence in government depends on officeholders not being in positions where their two roles point in opposite directions.
The 1994 AG followed his predecessor closely. AG Meierhenry had analyzed the same question in 1982 (AGR 82-23) on essentially the same constitutional grounds. The 1994 AG reaffirmed the conclusion in three short paragraphs, treating the result as flowing directly from the constitutional structure.
Citations and references
Constitutional and statutory provisions:
- S.D. Const. art. IX, § 1 (legislative plenary authority over local government)
- SDCL 7-7-5 (county commissioner salary, 1994 amendment)
Prior AG opinions:
- AGR 82-23 (incompatible offices, state legislator and county commissioner)
Source
Original opinion text
OFFICIAL OPINION NO. 94-11
Compatibility of simultaneous holding of offices of state representative and county commissioner
Dear Mr. Buskerud:
You have requested an official opinion of the Office of Attorney General regarding the following facts:
FACTS:
A county commissioner whose term expires December 31, 1994, was recently appointed to fill a vacancy in the State Legislature. He attended the Special Session of the Legislature in July, but presumably will not be involved in any further state legislative activity until after the expiration of his term as county commissioner. SDCL 7-7-5 was recently amended to allow county commissioners to set their own salary without limitation by the Legislature. Evidently in the past there have been situations where a person served as county commissioner and state legislator simultaneously after AG Opinion 82-23.
Based upon the above, you have asked the following question:
QUESTION:
Under the above factual situation, is there a conflict of interest in serving as county commissioner and as an appointed state legislator at the same time?
IN RE QUESTION:
As you have noted in your opinion request, this question has been presented several times previously. The question was most recently answered at AGR 82-23. There, Attorney General Meierhenry concluded:
[T]hat a conflict of interest would exist if an individual held the office of county commissioner and state legislator simultaneously.
Attorney General Meierhenry reasoned that because South Dakota Constitution Art. IX, § 1 grants the Legislature plenary power over units of local government, pursuant to constitutional authority, the Legislature establishes the existence of the boards of county commissioners and fixes their terms and their compensation. The fact that SDCL 7-7-5 now allows the county commissioners to fix their own compensation does not alter the result. The State Legislature still exercises the plenary authority over counties; so long as they have the power to do so, the conflict remains.
Therefore, it is my opinion that the offices of state representative and county commissioner are incompatible and a conflict of interest exists if any individual holds both offices simultaneously.
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