How many states have zero democratic house representation

1. Why the counts diverge — different questions, different datasets

The sources are not answering the identical question, which explains the divergence. One analysis identifies eight states that currently have one‑party U.S. House delegations where Democrats hold no seats, and discusses hypothetical redistricting that could produce more balanced maps ^[1]. Another listing enumerates a broader set of states reported as having 100% Republican representation, naming about eleven states explicitly — including Oklahoma, Arkansas, Iowa, Utah, Idaho, Montana, West Virginia, Alaska, North Dakota, South Dakota, and Wyoming — which yields a larger zero‑Democratic count ^[2]. A third source counts 21 states that have single‑party U.S. House delegations but does not disaggregate how many of those are all‑Republican versus all‑Democratic ^[3]. These are different operational definitions: “single‑party delegation” (any party), “states with no Democratic representatives” (explicitly Republican), and lists that mix U.S. House with state legislative chamber makeup ^{[4] [5]}.

2. What the most recent enumerations say — dates and the leading figures

Timing matters: the piece that framed potential redistricting opportunities and named eight one‑party delegations is dated August 14, 2025 ^[1]. A snapshot labeled September 10, 2025, offers a roster that is described as showing several states with zero Democratic House representation, though the exact total is inconsistently reported across summaries ^[2]. Smart Politics’ August 14, 2025 analysis reports 21 states with single‑party U.S. House delegations and frames that as historically high, noting the partisan seat counts and competitive margins that almost added more states to the list ^[3]. The existence of multiple near‑contemporary counts (August–September 2025) means small post‑election changes, special elections, or differing cut‑offs can flip a state from “mixed” to “single‑party” and vice versa, which is why counts differ across these late‑2025 sources ^{[1] [3] [2]}.

3. How methodological choices change the headline number

Counting “states with zero Democratic House representation” requires two clear methodological decisions: whether to include only the U.S. House delegation, and which date to use. If the metric is “states with an all‑Republican U.S. House delegation as of X date,” one set of sources finds about 8–11 states meeting that criterion depending on the exact roster used ^{[1] [2]}. If the metric is “states whose entire U.S. House delegation is single‑party of either flavor,” Smart Politics’ broader count is 21 states ^[3]. Some summaries conflate state legislative chamber tallies (state houses) with U.S. House delegations, yielding misleading totals; a separate dataset referenced the partisan composition of state legislatures (2,391 Democrats, 2,972 Republicans) but did not enumerate states with zero Democrats in those chambers ^[4]. Distinguishing between federal delegations and state legislative seats is essential to an accurate answer ^{[4] [5]}.

4. Bottom line and what to check next to settle the number

To settle the question authoritatively, compare a single, dated roster of all 435 U.S. House seats by party as of a specified date (for example, September 10, 2025) and count states whose delegations contain no Democratic members. The current sources point toward a figure between eight and eleven states when limited to all‑Republican U.S. House delegations, while broader definitions produce a 21‑state count of single‑party delegations that mixes both parties ^{[1] [2] [3]}. The immediate next step is to consult a consolidated clerk‑of‑the‑House or major nonpartisan tracker snapshot (dated) that lists each state’s U.S. House delegation by party; that single authoritative roster will eliminate the definitional and timing inconsistencies evident across the cited summaries ^[2].