ZIP 20816 vs ZIP 20818

20816 is one of 48 ZIP codes that lie mostly in Montgomery County, MD.

Shaded by typical home value, it ranks 4 of the 36 nearby ZIPs shown.

3 school locations in 20816: 2 elementary, 1 middle.

In alphabetical order: Westbrook Elementary, Westland Middle, Wood Acres Elementary. Locations only — no ratings are shown here.

20818 is one of 48 ZIP codes that lie mostly in Montgomery County, MD.

Shaded by typical home value, it ranks 5 of the 36 nearby ZIPs shown.

In January 2000 the typical home in 20816 was worth $425,338.

Values peaked at $1,265,000 in May 2025. The latest reading is −0.3% from that peak.

As of August 2026: $1,261,290, +1.1% over twelve months.

Start with the typical home: $1,261,290. Put 20% down and borrow $1,009,032 at 7.40%, the 30-year fixed average as of October 8, 2026.

That is $6,986 a month in principal and interest.

The median household here earns $231,284 a year, $19,274 a month. So the payment takes 36.2% of income — rated “severe” (Lotvox ZIP bands: under 28% affordable · 28–36% stretched · 36%+ severe).

The line holds today's rate fixed and moves only the price: at that rate, the same share was 12.2% in 2000.

Take the typical home's price each month, borrow 80% at that month's actual 30-year average rate: in January 2000 (8.21%) the payment was $2,547.

In December 2020, with rates at 2.68%, it was $3,181.

By August 2026, at 6.67%, it was $6,489 — +104% since December 2020, while the home's value moved +28%.

Reported values rose +197% since January 2000.

General prices (CPI-U) rose +97% over the same span.

Divide one by the other: in August 2026 dollars, the 2000 home was worth $839,448. So the real change is +50%, not +197%.

20816: +197% since January 2000.

Montgomery County: +182% since January 2000.

Maryland: +180% since January 2000 — 20816 ran ahead of it by 16 points.

Owning the typical home costs about $8,248 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $3,576 a month.

Price divided by a year's rent: 29.4. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.

In January 2000 the typical home in 20818 was worth $408,050.

Values peaked at $1,250,765 in May 2025. The latest reading is −1.2% from that peak.

As of August 2026: $1,236,121, +0.3% over twelve months.

Start with the typical home: $1,236,121. Put 20% down and borrow $988,897 at 7.40%, the 30-year fixed average as of October 8, 2026.

That is $6,847 a month in principal and interest.

The median household here earns $221,392 a year, $18,449 a month. So the payment takes 37.1% of income — rated “severe” (Lotvox ZIP bands: under 28% affordable · 28–36% stretched · 36%+ severe).

The line holds today's rate fixed and moves only the price: at that rate, the same share was 12.3% in 2000.

Take the typical home's price each month, borrow 80% at that month's actual 30-year average rate: in January 2000 (8.21%) the payment was $2,443.

In December 2020, with rates at 2.68%, it was $3,156.

By August 2026, at 6.67%, it was $6,360 — +101% since December 2020, while the home's value moved +27%.

Reported values rose +203% since January 2000.

General prices (CPI-U) rose +97% over the same span.

Divide one by the other: in August 2026 dollars, the 2000 home was worth $805,329. So the real change is +53%, not +203%.

20818: +203% since January 2000.

Montgomery County: +182% since January 2000.

Maryland: +180% since January 2000 — 20818 ran ahead of it by 23 points.

Owning the typical home costs about $8,083 a month once taxes and insurance (estimated at 1.2% of price a year) are added. Renting runs about $2,068 a month.

Price divided by a year's rent: 49.8. Lotvox reads under 15 as favoring buying and 20 or more as favoring renting.

Picture the Listings Flow Ladder as a basin: new listings pour in from the faucet, the homes for sale are the water, and closed sales run out the drain. Coming in — new listings: about 23 a month (Redfin, 3-month rolling data through August 2026).

On the shelf — homes for sale at the end of the period: 53.

Going out — closed sales: about 19 a month. The drain is drawn 38% narrower: the share of homes for sale that sell each month is 62% of its 2015–2019 level.

The ladder: homes for sale ÷ monthly sales = 2.8 months of supply — below the 4–6 month range Lotvox treats as balanced. In the basin, that is the water level against the shaded balanced band.

The net reading: about 5 more homes came on than sold each month, so inventory is growing. The basin is filling.

Homes sold: about 19 a month in August 2026 (Redfin).

The 2015–2019 level for the same month was 17 — so sales ran at 112% of it, and below it in 15 of the last 24 months.

Across Montgomery County, builders pulled permits for 1,411 new homes in 2025.

Of those, 57% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).

Homes sold: about 2 a month in August 2026 (Redfin).

The 2015–2019 level for the same month was 2 — so sales ran at 100% of it, and below it in 15 of the last 24 months.

Across Montgomery County, builders pulled permits for 1,411 new homes in 2025.

Of those, 57% were in 1-unit buildings (the Census Bureau's category for detached and attached single homes).

This ZIP sits in Montgomery County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 12,327 moved in. Among the ten receiving the most, 15,047 moved out.

Net across those counties: −2,720 households. Beside it, homes for sale in this ZIP: 53 in June 2026.

Most arrivals came from Prince George's, MD (3,735 households); most departures went to Prince George's, MD (3,823).

This ZIP sits in Montgomery County. IRS tax returns for 2022-2023: among the ten counties sending the most households, 12,327 moved in. Among the ten receiving the most, 15,047 moved out.

Net across those counties: −2,720 households. Beside it, homes for sale in this ZIP: 6 in June 2026.

Most arrivals came from Prince George's, MD (3,735 households); most departures went to Prince George's, MD (3,823).