Hot Springs School District 23-2

It never has a ZIP Code to itself

3,409 homes hold 5,843 residents, about 1.7 people each. Where households are small, a district's share of the homes overstates its share of the children, and this page counts homes.

• Homes inside the boundary3,409
• Residents5,843
• ZIP Code areas it reaches6
• Where it is the only district0
• Where it shares with another district5
• Where it holds under half a percent1
• Land area581 square miles
• Homes per square mile6

The ZIP Code areas it reaches

The spread is the thing to notice. In 57766 this district holds 95% of the homes; in 57763 it holds no homes at all. Same district, opposite answers, and a lookup that names it without the share tells the second household the same thing as the first.

• ZIP Code 57766 · Oral, South Dakota95% of the homes
• ZIP Code 57747 · Angostura, South Dakota94% of the homes
• ZIP Code 57722 · Buffalo Gap, South Dakota61% of the homes
• ZIP Code 57782 · Smithwick, South Dakota2.5% of the homes
• ZIP Code 57735 · Edgemont, South Dakota0.6% of the homes
• ZIP Code 57763 · Oelrichs, South Dakotano homes at all

What one name misses in the areas it leads

Hot Springs School District 23-2 is the largest district in 3 ZIP Code areas, and not one of them is wholly its own. Answer with its name alone and the answer misses 265 of the 3,668 homes those areas hold. That count is computed here from census blocks; the lookups that answer this question with a single name never print it.

Hot Springs School District 23-2 holds 3,186 of the 3,378 homes in ZIP Code 57747 · Angostura, South Dakota, so its name is right for most of the area and wrong for the rest: 176 homes with Custer School District 16-1 and 16 homes in districts too small to name here.

In ZIP Code 57722 · Buffalo Gap, South Dakota the split runs 106 to 67 and the larger part is Hot Springs School District 23-2's: the rest is 67 homes with Oglala Lakota County School District 65-1 and Custer School District 16-1.

ZIP Code 57766 · Oral, South Dakota is a two-district area: 111 of its 117 homes are inside Hot Springs School District 23-2, and the other 6 homes are with Oelrichs School District 23-3. Which one an address belongs to is settled by the street, not by the five digits.

Hot Springs School District 23-2 is not the name anyone would give for ZIP Code 57735 · Edgemont, South Dakota — Edgemont School District 23-1 leads it — and Hot Springs School District 23-2 holds 5 homes there all the same. Answer that area with one name and that is what it is wrong about.

ZIP Code 57782 · Smithwick, South Dakota is another area where Hot Springs School District 23-2 is present without being the answer: 1 of its 40 homes, behind Oelrichs School District 23-3.

Who takes the other homes in its ZIP Codes

Hot Springs School District 23-2 runs pre-K through grade 12 itself, so an address it holds sees no change of authority between grade school and high school. The districts listed below are the ones that take the other homes in the ZIP Code areas it shares — Edgemont School District 23-1, Custer School District 16-1 and Oelrichs School District 23-3. They are neighbors on the same postal ground, not the next stop for its own students.

• Edgemont School District 23-1665 homes in 1 shared ZIP Code area
• Custer School District 16-1207 homes in 2 shared ZIP Code areas
• Oelrichs School District 23-3180 homes in 3 shared ZIP Code areas
• Elk Mountain School District 16-2172 homes in 1 shared ZIP Code area
• Oglala Lakota County School District 65-136 homes in 1 shared ZIP Code area

Who it shares ZIP Codes with

These districts appear alongside Hot Springs School District 23-2 in the same ZIP Code areas: Custer School District 16-1, Oelrichs School District 23-3, Edgemont School District 23-1 and Elk Mountain School District 16-2. A single-name lookup for one of those areas has to choose between them, and the choice is right for some addresses and wrong for others.

• Custer School District 16-12 shared ZIP areas
• Oelrichs School District 23-32 shared ZIP areas
• Edgemont School District 23-11 shared ZIP area
• Elk Mountain School District 16-21 shared ZIP area
• Oglala Lakota County School District 65-11 shared ZIP area

Where this district sits

• School districts in South Dakota273 of 375 ZIP areas split
• Every district with a page here260 districts listed

What to do next

Ask the district office to confirm your street address. A district settles that question on its own site: look for a school locator, a find my school tool, or an attendance zone map. Where there is none, ask the office itself.

A ZIP Code is a set of mail delivery routes, not a boundary: in 5 of the 6 ZIP Code areas Hot Springs School District 23-2 reaches, at least one other district holds a real share of the homes as well, and the line between them runs along streets. Only the district can say which side of that line an address is on.

This site links to no district website. None of the federal files it is built from publishes one, and a guessed address is worse than none. It is the district office, not a search engine, that settles an address.

If a house purchase depends on the answer, ask the district itself for written confirmation of that exact address. A listing is not a district record, and neither is this page.

What this cannot tell you

The homes were counted in the 2020 Census and the district lines are the 2026 boundary file. Nothing on this page adjusts one to the other. Where houses have been built or cleared since the count, a share here describes the place as it was counted rather than as it stands today, and in the fastest-growing ZIP Code areas that gap is the largest single source of error on this site.

A share on this page is a share of the homes in the ZIP Code area, not a probability for any particular address. Enrollment is decided by street address, and a district may run magnet, charter or choice programs that ignore the boundary entirely. If a decision depends on the answer, the district office is the only authority; this page shows what the federal boundary files say and when they were published.

A district boundary is not a school attendance zone. This site never says which school an address is assigned to: no current national dataset of attendance zones exists, and the district draws them itself. Nor is anything here endorsed or certified by the Census Bureau; we use their published files, and that is the whole of the relationship.

A ZIP Code is a set of mail delivery routes, not an area. What is mapped here is the Census Bureau's ZIP Code Tabulation Area, the closest published approximation to it. The two are not identical, and a handful of ZIP Codes used only for post office boxes or single buildings have no tabulation area at all.

Where these numbers come from

School district boundaries come from the Census Bureau's Census Geographic Relationship File, current 2026 vintage, which assigns every census block to a unified district or to an elementary and a secondary district. Homes and residents in each block come from the 2020 Census Redistricting Data (PL 94-171), H1_001 and P1_001. The ZIP Code areas come from the same Geographic Relationship File, block to ZIP Code Tabulation Area. District names and grade ranges come from the Census Gazetteer 2025, with 2020 for districts no longer listed.

The place name printed beside a ZIP Code comes from the Census 2020 ZIP Code Tabulation Area relationship files: place, county subdivision and county, taken 2026-09-06. It is a label rather than a measurement: the Census Bureau does not publish which post office a ZIP Code belongs to, so the place named is the one covering the most land inside the area, not the city the Postal Service prints on an envelope.

Everything else on this page — the shares, the counts of districts per ZIP, the comparison between the two grade bands, the rankings — is computed here from those files. The source publishes none of it. Snapshot taken 2026-09-03.