Caroline County, MD · 563 properties with county records
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Henderson 21640 is in Caroline, MD. The typical home value in Henderson 21640 is $397,643 (Zillow Home Value Index, August 2026), up 2.2% from a year earlier. Homes that sold went under contract in a median 51 days, and 0% of listings took a price cut (Redfin Data Center, period ending Aug 31, 2026). On Lotvox's market-leverage reading of that data, with 1.5 months of supply, sellers hold a slight edge. The Lotvox Turnover Index is not published for 21640 yet: it appears only where a held-out test on the county's recorded sales beats chance. Across Caroline's 7 ZIPs with a Zillow value, the middle one is $338,396, so 21640 sits 18% above the county middle. Lotvox holds county assessor records for 563 properties in 21640.
Headline value data through August 2026. Each source below carries its own date.
Is 21640 a buyer's or seller's market?
By Lotvox's leverage reading of Redfin data through Aug 31, 2026, 21640 is a seller's market, narrowly. Homes went under contract in a median 51 days with 1.5 months of supply.
What do homes in 21640 sell for?
The typical home value in 21640 is $397,643 (Zillow Home Value Index, August 2026), up 2.2% in a year. County records put the median at about $167 per square foot (computed Apr 21, 2026).
Who is likely to sell in 21640?
Lotvox only publishes its Turnover Index where a held-out test on recorded sales beats chance, and 21640 has not passed that test yet. When it does, the score appears here.
How does 21640 compare to Caroline?
21640's typical value of $397,643 compares with a middle value of $338,396 across Caroline's 7 ZIPs. Both are Zillow Home Value Index figures for August 2026.
Where does this 21640 data come from?
Values and rents come from Zillow's research data, sales pace from the Redfin Data Center, and property counts and turnover from county assessor and deed records. Each number on this page carries its own date, and the method is published at lotvox.com/methodology.
Verdict grades housing conditions; buyer-timing, investor cash-flow, supply-tightness and county macro scores answer different questions — each in its own section.
Buyer / seller
buyer-timing lens
Negotiate Hard
Needs 25.2% correction for affordability
Score Components
Payment Burden (25%)75
Valuation Gap (25%)80
Buy vs Rent (15%)75
Days on Market (5%)20
Moderate buyer leverage in 21640. Room to negotiate 5-10% below list. Payment burden: 37.3% of median income. A 6% price correction needed to reach 30% affordability threshold. Median days on market: 19. Renting is approximately 71% cheaper than buying (price-to-rent ratio: 20.5). Market appears 25% overpriced vs. assessed values.
What to Offer
Offer 5-10% below list. You have room to negotiate.
Housing pulse — Housing pulse could not be loaded (429).
Price bands
mix-shift
Price Bands — the median behind the median
A single median rises whenever expensive homes become a bigger share of what sells, even if no tier got more expensive. These are the tiers underneath it, computed from recorded arms-length deed transactions in Caroline.
Current tiers · 12 months to Invalid Datefloor 10 sales/tier
7 tiers had too few sales at every level and are left blank rather than estimated.
Tier
Median
$/sqft
Sales
Share
Source
Under $250k
—
—
—
—
fewer than 10 sales at zip, county and metro level
$250k–$500k
—
—
—
—
fewer than 10 sales at zip, county and metro level
$500k–$750k
—
—
—
—
fewer than 10 sales at zip, county and metro level
$750k–$1M
—
—
—
—
fewer than 10 sales at zip, county and metro level
$1M–$1.5M
—
—
—
—
fewer than 10 sales at zip, county and metro level
$1.5M–$2M
—
—
—
—
fewer than 10 sales at zip, county and metro level
$2M+
—
—
—
—
fewer than 10 sales at zip, county and metro level
No mix-shift history for this area. no geography from this ZIP up to metro has 8+ quarters of 10+ recorded arms-length sales across at least 4 price tiers. Trends are drawn only from recorded transactions; the last-sale snapshot above cannot carry a time series, because a property that sold twice keeps only its latest sale — which drags the history upward through the tiers and would invent the very mix shift this section exists to test for.
National context — not local
NAR's aggregate existing-home median for the United States and the South census region. This is the figure the tiers above are a check on. It is national/regional and says nothing about 21640.
United States
South
Copyright, National Association of Realtors. Reprinted with permission. Retrieved from FRED, Federal Reserve Bank of St. Louis. FRED publishes a rolling 13-month window for these series.
Tiers computed from Lotvox parcel and deed substrate through Aug 25 (10 later months withheld as partially loaded). Sample floor 10 sales per tier; below it a figure is drawn from the county or metro and labelled, or left blank. Multi-parcel bulk deeds and duplicate records are excluded.
ZIP score grades housing; county score adds macro distress (jobs, debt, poverty). They answer different questions.
County Coverage (2 counties)
ZIP 21640 spans 2 counties
Healthy (29)
This ZIP code crosses county lines. Property data shows Caroline (90.2%) and Queen Anne's (9.8%). County metrics below are shown separately for each county.
Caroline (90.2%)
Queen Anne's (9.8%)
ZIP 21640→2 counties
Caroline County 90.2%Queen Anne's County 9.8%
12-Month Direction
-19Moderate Deterioration
Confidence
100%
DeterioratingStableImproving
Why this score
BuildersLens Market Intelligence
Market Score
48· Weak
Market Score grades housing-market conditions (affordability, valuation, supply). The county Healthy/Moderate/Distressed badge measures economic distress (jobs, debt, poverty) — the two can read differently.
Payment Burden
40.1%
severe
Source: Freddie Mac PMMS (FRED MORTGAGE30US) 7.4% · Zillow ZHVI · Census income · Updated 2026-10-08
Price-to-rent
20.1x
favors renting
Source: Zillow ZHVI ÷ (Zillow ZORI × 12)
Valuation7
+61%
overvalued
Source: Lotvox comps · Updated 2026-05-15
Supply/Demand
1.5 mo
seller's market
Source: Redfin Data Center (ZIP): inventory ÷ monthly homes sold · Updated 2026-08-31
Economic indicators are mixed relative to comparable U.S. counties.
Unemployment Rate
3.6%
MD 4.4%US 4.4%
Near national averages
Source: BLS LAUS · 2026-0845d ago
Poverty Rate
13.3%
MD 9.8%US 12.6%
Near national averages
Median Household Income
$66,368
MD $104,998US $82,006
Near national averages
Cost of Living (RPP)
108.5
MD 108.5US 100.3
Near national averages
Home Value (ZHVI)$331,804
County data: BLS, Census ACS, CDC, FBI UCR, Federal Reserve, USDA · Coverage derived from property records · Counties with <2% coverage excluded as likely data errors