Unfunded Liability
$264M
actuarial shortfall
The Public Plans Database's 23-year record for Sioux Falls ERS: funded ratio, unfunded liability, member counts, and investment returns, compiled by Boston College CRR and cross-checked against actuarial valuations.
By PlainPension · · South Dakota · General State Plan · Data through FY2023
According to the Public Plans Database, compiled by the Boston College Center for Retirement Research, Sioux Falls ERS is one of 197 public pension plans tracked nationwide. The plan card reports FY2023 valuation figures; the multi-year table includes FY2024 where PPD published it; this site’s database copy was last loaded in July 2026. See our methodology for the full source and update cadence.
Unfunded Liability
$264M
actuarial shortfall
Total Members
1,296
active + retired + vested
1-Year Return
13.1%
net investment return
8.3pp vs 5-yr avg
5-Year Avg Return
4.8%
annualized, net of fees
A ratio of 68.8% compared against the national public-pension average of 75.5%.
Plans above 80% are generally considered adequately funded by NASRA standards.
The active-to-retiree ratio is a leading indicator of long-term plan sustainability, plans with more retirees than active contributors face mounting cash-flow pressure as benefit payments outpace incoming contributions.
Public pension plans report their asset allocation in their annual CAFR and actuarial valuation. Equity-heavy mixes capture market upside but introduce volatility; fixed-income tilts protect funded status during downturns at the cost of long-run return.
| Year | Funded Ratio |
|---|---|
| 2024 | N/A |
| 2023 | 68.8% |
| 2022 | 68.7% |
| 2021 | 66.2% |
| 2020 | 61.2% |
| 2019 | 61.5% |
| 2018 | 59.4% |
| 2017 | 57.6% |
| 2016 | 51.1% |
| 2015 | 48.5% |
| 2014 | 45.9% |
| 2013 | 42.6% |
| 2012 | 51.0% |
| 2011 | 41.9% |
| 2010 | N/A |
| 2009 | N/A |
| 2008 | N/A |
| 2007 | N/A |
| 2006 | N/A |
| 2005 | N/A |
Sioux Falls ERS reports a funded ratio of 68.8% as of fiscal year 2023, earning a financial health grade of C in the Public Plans Database. The plan holds $583M in market assets against an unfunded liability of $264M. As a General State plan operating under South Dakota sponsorship, it covers 1,296 members (423 active contributors, 783 retirees drawing benefits).
Sioux Falls ERS is funded above the midpoint but still carries a real shortfall, 7 points below the 75.5% national average across tracked plans. A 5-year average investment return of 4.8% factors into the plan's overall trajectory.
For South Dakota taxpayers and plan members, the $264M unfunded gap is the actuarial shortfall this plan must close over time.
These figures come from the Public Plans Database, a collaboration between the Boston College Center for Retirement Research and NASRA that compiles them from each plan's Comprehensive Annual Financial Reports (CAFRs) and actuarial valuations. The relationship between contribution adequacy and investment performance determines whether an unfunded liability narrows or expands year over year, and the gap itself is typically closed through some combination of higher contributions, investment returns, or benefit modifications. See our methodology for how public-pension funding differs from ERISA-backed private plans, and our disclaimer below before acting on this data.
The closest plans nationwide to Sioux Falls ERS's 68.8% funded ratio.
Sioux Falls ERS has a funded ratio of 68.8% as of FY2023, earning a health grade of C. The reported ratio shows actuarial assets divided by actuarial accrued liabilities for the stated fiscal year. Its interpretation depends on the plan's assumptions, valuation date, and contribution history.
A public plan's reported ratio is only one part of its financial picture. PlainPension does not predict actions by Sioux Falls ERS, South Dakota, or any public body.
A funded ratio of 68.8% means that Sioux Falls ERS currently has assets equal to 68.8% of its projected benefit obligations. The unfunded liability, the gap between assets and liabilities, stands at $264M. This represents a moderate funding gap that requires ongoing monitoring.
Sioux Falls ERS is a General State plan in South Dakota serving 1,296 members. Nationally, the average funded ratio for public pension plans tracked by the Public Plans Database is approximately 75.5%. Sioux Falls ERS's funded ratio of 68.8% places it near the national average.
Sioux Falls ERS covers 1,296 total members, including 423 active employees and 783 retirees currently receiving benefits. The ratio of active members to retirees is a key indicator of plan sustainability, when the number of retirees grows relative to active contributors, funding pressure increases.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the Public Plans Database (PPD). Consult a qualified professional before making decisions based on this data.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainPension is rendered directly from the Public Plans Database (Boston College Center for Retirement Research), no number is typed in by an editor. This page aggregates this plan's funded ratio, unfunded liability, and multi-year financial history, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.