Grid Point Code
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Houston

TexasUnited States

Grid Point Code for Houston
With a code
#G7JDM-64CJ1
Said aloud
Houston 64CJ1

Get the code for your door

What the code says

The Grid Point Code for Houston is #G7JDM-64CJ1. It names a cell 2.56 m north to south and 2.97 m east to west, centred on 29°45'47.85"N, 95°21'47.82"W, and it turns back into that cell on any phone or computer by arithmetic alone: no network, no account, no lookup table.

The point used is the one GeoNames records for Houston, near its centre.

Code
#G7JDM-64CJ1
With a check character
#G7JDM-64CJ1*P
Short form
64CJ1
Cell centre
29.763291, -95.363282
Cell size
2.56 m by 2.97 m
Region
Texas
Country
United States
Population
2,314,157

How to give this address

On a sign, a form or a delivery note

The whole code, #G7JDM-64CJ1. It needs nothing else: no city, no street, no network to read it back.

Said aloud, in Texas

Houston 64CJ1: a name both people know, then the last five characters. They give back the exact code for anywhere within 4.0 km north or south and 4.6 km east or west of Houston. Further away the same five name somewhere else, which is why the whole code is what goes on a sign.

Copied by hand, or read over a phone

#G7JDM-64CJ1*P. The character on the end catches any single mistyped symbol and any two neighbours swapped.

As a link or a square code

Open it on the map, move to the exact door, and add directions if the code needs help: "blue gate, second floor". The link and the square code carry them. Nothing is kept on this site.

From the city to the door

The first four characters name a cell about 40 km by 46.4 km here. Each one after that picks one of 25 inside the last, so the whole ten name a spot about the size of a doorway.

  1. G7JDMetropolitan area40 km by 46.4 km
  2. G7JDMDistrict8 km by 9.28 km
  3. G7JDM6Suburb1.6 km by 1.86 km
  4. G7JDM64A few streets320 m by 371 m
  5. G7JDM64CBuilding64 m by 74.2 m
  6. G7JDM64CJEntrance12.8 m by 14.8 m
  7. G7JDM64CJ1Doorway2.56 m by 2.97 m

More in United States

City, region and population from GeoNames, under CC BY 4.0.