Summary answer: In most of the country, a jumbo loan kicks in above roughly $766,000–$833,000. In Arlington, it's different — because Arlington is a federally-designated high-cost county, the conforming loan limit for 2026 extends all the way to $1,249,125. That means a loan doesn't become "jumbo" here until it crosses that much higher threshold, which changes the math for a large share of Arlington buyers who'd be considered jumbo borrowers almost anywhere else.
I'm Johnny with JQ Real Estate. This is one of the most misunderstood numbers in Arlington home financing, so let's clear it up.
Why the "jumbo" line moves for Arlington
Conforming loan limits are set nationally by the Federal Housing Finance Agency, with a standard baseline and a higher "high-cost area" ceiling for expensive markets. Arlington qualifies for that high-cost ceiling. So a $1.1 million loan that would be jumbo in most of the country is still a standard conforming loan in Arlington — meaning better rates, more lender options, and easier qualifying than jumbo financing typically requires.
| Loan Size | Classification in Arlington (2026) |
|---|---|
| Up to $832,750 | Standard conforming |
| $832,751–$1,249,125 | High-balance conforming (still not jumbo) |
| Above $1,249,125 | Jumbo |
What actually changes once you cross into jumbo territory
- Larger down payment typically required — often 10–20% minimum, sometimes higher depending on the lender
- Stricter credit and reserve requirements — many jumbo lenders want to see 6–12 months of payments in reserve
- Rate can run higher or lower than conforming — this varies more by lender than people expect; it's not automatically worse
- Fewer lender options — not every lender offers jumbo products, so shopping matters more
Where this actually comes up in Arlington
Given single-family homes here often run $700,000 to well over $1.3 million, a meaningful number of Arlington single-family purchases fall inside the high-balance conforming range rather than true jumbo — a fact that surprises buyers who assumed anything over $800K automatically meant jumbo financing. It's really only the top tier of Arlington's single-family market, or a large custom-built or luxury purchase, that crosses into actual jumbo territory.
Does this change your strategy?
If your target price is close to that $1,249,125 line, it's worth structuring your down payment specifically to stay under it if conforming financing is a priority for you — the difference in qualifying difficulty and rate shopping can be significant. This is a conversation worth having with a lender before you're mid-negotiation on a specific home, not after.
Figure out where you land
Whether you're comfortably under the conforming ceiling or looking at true jumbo financing changes your whole approach to lender shopping. I can connect you with lenders who handle both well. Reach out and let's figure out which side of that line your target price falls on.