[Answer]-Geodjango multilingual site gives different results for location values

Format localization is a feature of Django.

You can turn it off for your whole project by setting USE_L10N to False in your settings, or just in that particular case, with unlocalize template filter:

{% load l10n %}
{% for vE in venueEvents %}
    {% for v in vE.venues %}
        lArr.push([{{ v.location.y|unlocalize }}, {{ v.location.x|unlocalize }}]);
    {% endfor %}
{% endfor %}