By Indy Senior Advisor Care Team · September 28, 2026
Castleton's mall-and-office-park reputation hides a fact that matters for families: it is one of Marion County's newest residential pockets, split between two separate townships, with a different housing stock and a different safety net than Indianapolis's older, historic neighborhoods.
A neighborhood built around a mall, not a town square
Every neighborhood post we have written so far has had a historic core to work from. Irvington has 150-year-old housing stock. Meridian-Kessler and Butler-Tarkington have 1920s foursquares. Noblesville has a courthouse square older than the interstate. Castleton has none of that, and the difference is not cosmetic. It changes what aging in place actually looks like there.
Castleton started in 1852 as a small settlement 12 miles northeast of Monument Circle, built around brickmaking and a rail depot. It stayed a small town for more than a century -- 268 residents in 1950 -- until 1965, when Indiana's legislature created uniform Marion County zoning and designated Castleton a commercial area, anticipating the interstate interchange that was coming. Unigov folded it into Indianapolis in 1970. The town government itself was not formally dissolved until January 1992, by which point only 37 residents were left inside the old town limits -- the rest of what people now call "Castleton" is unincorporated Marion County that grew up around it.
The turning point was 1972, when Castleton Square opened as what was then the largest enclosed shopping mall in Indiana. Retail and office development followed for two decades: by the early 1990s the immediate area held 19 shopping centers in two square miles, and today the neighborhood carries roughly 2.8 million square feet of retail space and more than 900,000 square feet of office space. Castleton is, functionally, a commercial district that acquired apartments and subdivisions around its edges -- the reverse order from how Indianapolis's older neighborhoods developed.
What actually got built, and when
The neighborhood most people mean when they say "Castleton" is bounded by 96th Street to the north, the White River to the west, Interstate 69 to the east, and 82nd Street/I-465 to the south -- straddling ZIP codes 46250 and 46256. The 2020 Census put the population at 11,198. Almost none of the housing inside that boundary predates the mall. What went up instead, through the 1980s and 1990s, was apartment complexes, garden-style condos, and single-story subdivisions built for a commuting, car-owning population -- not the two-story foursquares and bungalows that define Meridian-Kessler or Irvington a few miles south.
That matters because of a pattern our data shows across the rest of the metro. Marion County's senior population is the largest in absolute terms in the region, and it is concentrated in older, pre-1970s housing stock originally built for a different generation and never retrofitted for aging in place -- narrow stairwells, small bathrooms, no-step entries that were never a design consideration in 1925. Castleton is the exception inside Marion County's own numbers: a pocket of newer construction, with a different set of physical tradeoffs than the county it sits in.
A single-story ranch condo built in 1988 solves the stairs problem before a family ever has to think about it. It usually does not solve the doorway-width or walk-in-shower problem -- 1980s builders were not designing for wheelchairs any more than 1920s builders were -- but a bathroom retrofit in a newer build with modern plumbing runs a very different job than gutting a century-old one. Ask any contractor who has quoted both.
The tradeoff nobody puts on the real estate listing
Newer housing stock is not an unqualified win, and we are not going to pretend it is. A meaningful share of Castleton's housing is rental -- apartment complexes built explicitly for the office and retail workforce the mall generated, not for multi-generational homeownership. A family whose parent has lived in a Meridian-Kessler foursquare for forty years is often sitting on home equity that can fund years of assisted living or a home-care aide. A family whose parent has rented in Castleton for a decade usually is not, and the planning conversation looks different from day one -- less "how do we use the house" and more "what does Medicaid, a waiver, or a benefit actually cover."
That is not a reason to avoid the neighborhood. It is a reason to have the conversation about funding sources earlier rather than later if your family's situation looks like this, and to know which programs actually apply before a crisis forces the question. Indiana's PathWays Waiver and the Residential Care Assistance Program (RCAP) exist regardless of whether a parent owns or rents, and neither one requires home equity as a starting point -- see our full breakdown of how those two programs actually work together.
The two townships nobody mentions
Here is the detail that surprises even longtime Castleton residents: the neighborhood sits in two different townships. Marion County has nine townships, and Castleton spans both Washington Township (which also covers Broad Ripple and Meridian-Kessler, to the west) and Lawrence Township (which covers the area east toward the city of Lawrence). We have written before about why that matters for one specific reason: every Indiana township runs its own emergency assistance office, and which one answers your call depends on which side of the line your parent's address falls on -- not on the county, and not on the ZIP code, since both 46250 and 46256 cross the township line in places.
The two offices are not interchangeable and do not share a waiting list, a case file, or a phone number. Lawrence Township Trustee's office is at 4455 McCoy Street, Indianapolis, 46226 (317-890-0011). Washington Township Trustee's office is at 5302 N. Keystone Avenue, Suite E, Indianapolis, 46220 (317-327-8800). Calling the wrong one does not get you transferred instantly to the right one -- it gets you a polite explanation that you need to call the other office, which is a bad way to spend an afternoon when a utility shutoff notice has a deadline on it.
If you do not already know which township a specific address falls in, do not guess from the map in your head. Marion County's own Assessor Property Cards tool (maps.indy.gov/AssessorPropertyCards) will show the taxing township for any parcel in seconds, and it is worth checking before you need it, not during an emergency. Indiana 211 (dial 2-1-1, or text your ZIP to 898-211) can also route you if you would rather make one call and let someone else sort it out.
The care options already in the neighborhood
Castleton has two licensed senior care communities inside its own boundaries, and we checked both against their current operator websites rather than an aggregator. The Wyndmoor of Castleton, an assisted living community at 8480 Craig Street (46250), sits on the Washington Township side of the neighborhood. Clearvista Lake Health Campus, which offers assisted living and memory care at 8405 Clearvista Place (46256), sits closer to the Lawrence Township side. Amedisys Home Health Care also operates a Castleton office at 10475 Crosspoint Boulevard, Suite 105, for families who want care delivered at home rather than a move.
What Castleton does not have, inside its own boundaries, is a nursing home or an independent-living-only campus -- families who need skilled nursing or an age-restricted apartment without personal care will be looking a short drive away, most often toward the broader Indianapolis market or the rest of Marion County. That is worth knowing before you tour, not after: ask a Castleton-area assisted living community directly whether they hold a PathWays Waiver provider agreement, an RCAP agreement, both, or neither, since a facility can hold any combination and it is never safe to assume.
The hospital that is already right there
One genuine advantage of Castleton's commercial-corridor layout: Community Hospital North, at 7150 Clearvista Drive (46256), sits inside the neighborhood itself rather than a car ride away. Community Health Network runs a NICHE-designated geriatric care program there -- Nurses Improving Care for Healthsystem Elders, a national program focused specifically on how hospitals treat older patients -- alongside inpatient rehabilitation through the adjacent Community Rehabilitation Hospital North, orthopedic and joint/spine care, and palliative care.
If a parent is admitted there, the discharge-planning questions are the same ones we cover in our broader guide to hospital discharge across Indianapolis's major health systems and in our 72-hour discharge checklist: get the discharge plan in writing, confirm inpatient versus observation status in writing (it decides whether Medicare's skilled nursing benefit applies at all), and ask specifically which nearby communities have already said yes to the referral rather than which ones were simply faxed a form.
What does not change no matter which side of the line you are on
It is worth being direct about what Castleton's split geography does and does not affect. It changes which township trustee's office you call in a short-term cash emergency. It does not change which Area Agency on Aging serves you: CICOA Aging & In-Home Solutions covers all six counties in this metro, including every inch of Castleton regardless of township, at 317-254-5465. It does not change Indiana's licensing framework -- both facilities in the neighborhood are licensed the same way, as Residential Care Facilities under 410 IAC 16.2-5, and you can pull either one's inspection history yourself before you tour. And it does not change who to call if something looks wrong once a parent is already living there: Indiana's Long Term Care Ombudsman program, run by Indiana Legal Services, covers this entire region under one office regardless of township or county, and filing a complaint works the same way everywhere -- our complaint-filing guide walks through it.
The pattern worth remembering is that Indiana layers a genuinely statewide, county-wide system -- Medicaid waivers, licensing, the ombudsman -- underneath a genuinely hyper-local one, township assistance, that does not follow the same boundaries as anything else on this page. Castleton is simply where that mismatch is most visible, because the neighborhood itself sits astride the local line.
If you are actually looking at Castleton right now
Confirm the township before you need the trustee's office, not during a shutoff notice -- the Assessor Property Cards lookup takes less time than this paragraph did to read. Tour both Wyndmoor of Castleton and Clearvista Lake Health Campus if assisted living or memory care is the question, and ask each one the same waiver-agreement question so you are comparing like to like. If skilled nursing or independent living is what you actually need, plan on looking slightly outside the immediate neighborhood, and use our full directory to see what else sits nearby.
None of this has to be sorted out alone. If you are weighing Castleton against a neighborhood with more historic housing stock, or trying to work out what a parent's specific finances actually qualify for, reach one of our advisors -- the help is free, and it usually saves the two or three phone calls it would otherwise take to find out you called the wrong township trustee first.
